diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..038a39d
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,45 @@
+{
+    // IntelliSense を使用して利用可能な属性を学べます。
+    // 既存の属性の説明をホバーして表示します。
+    // 詳細情報は次を確認してください: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "lldb",
+            "request": "launch",
+            "name": "Debug executable 'rustris'",
+            "cargo": {
+                "args": [
+                    "build",
+                    "--bin=rustris",
+                    "--package=rustris"
+                ],
+                "filter": {
+                    "name": "rustris",
+                    "kind": "bin"
+                }
+            },
+            "args": [],
+            "cwd": "${workspaceFolder}"
+        },
+        {
+            "type": "lldb",
+            "request": "launch",
+            "name": "Debug unit tests in executable 'rustris'",
+            "cargo": {
+                "args": [
+                    "test",
+                    "--no-run",
+                    "--bin=rustris",
+                    "--package=rustris"
+                ],
+                "filter": {
+                    "name": "rustris",
+                    "kind": "bin"
+                }
+            },
+            "args": [],
+            "cwd": "${workspaceFolder}"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/src/block.rs b/src/block.rs
index 296ef90..ce9c281 100644
--- a/src/block.rs
+++ b/src/block.rs
@@ -2,7 +2,8 @@
 pub enum Block {
     Air,
     Block,
-    Ghost
+    Ghost,
+    Control
 }
 
 impl Block {
@@ -11,6 +12,7 @@ impl Block {
             Block::Air => String::from("・"),
             Block::Block => String::from("■"),
             Block::Ghost => String::from("□"),
+            Block::Control => String::from("■"),
         }
     }
 }
diff --git a/src/game_data.rs b/src/game_data.rs
index 2491edd..05173a3 100644
--- a/src/game_data.rs
+++ b/src/game_data.rs
@@ -13,34 +13,36 @@ pub struct GameData {
     pub next_minos: Vec<Mino>,
     pub mino_rotation: MinoRotation,
     pub field_size: (usize, usize),
+    pub show_ghost: bool,
+    pub hold_mino: Option<Mino>
 }
 
 impl GameData {
-    pub fn new(field_size: (usize, usize)) -> GameData {
+    pub fn new(field_size: (usize, usize), show_ghost: bool) -> GameData {
         let minos: Vec<Mino> = vec![
             Mino {
                 id: String::from("I"),
                 shape: vec![
-                            vec![false, false, true ,false],
-                            vec![false, false, true ,false],
-                            vec![false, false, true ,false],
-                            vec![false, false, true ,false],
+                            vec![false, false, false ,false],
+                            vec![true, true, true ,true],
+                            vec![false, false, false ,false],
+                            vec![false, false, false ,false],
                         ]
             },
             Mino { 
                 id: String::from("J"), 
                 shape: vec![
-                            vec![false, true, false],
-                            vec![false, true, false],
-                            vec![true, true, false],
+                            vec![true, false, false],
+                            vec![true, true, true],
+                            vec![false, false, false],
                         ] 
             },
             Mino { 
                 id: String::from("L"), 
                 shape: vec![
-                            vec![false ,true ,false],
-                            vec![false ,true ,false],
-                            vec![false ,true ,true],
+                            vec![false ,false ,true],
+                            vec![true ,true ,true],
+                            vec![false ,false ,false],
                         ]
             },
             Mino { 
@@ -84,10 +86,12 @@ impl GameData {
             minos, 
             field, 
             control_mino: None, 
-            mino_pos: (0, 0) ,
+            mino_pos: (0, 0),
             next_minos,
             mino_rotation: MinoRotation::Up,
-            field_size
+            field_size,
+            show_ghost,
+            hold_mino: None
         }
     }
 }
diff --git a/src/game_status.rs b/src/game_status.rs
new file mode 100644
index 0000000..888c07a
--- /dev/null
+++ b/src/game_status.rs
@@ -0,0 +1,5 @@
+#[derive(Debug)]
+pub enum GameStatus {
+    Playing,
+    Gameover
+}
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index e90db2d..5bc60c0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,9 +3,14 @@ mod mino;
 mod block;
 mod rustris;
 mod mino_rotation;
-use std::{io::stdout, sync::{Arc, Mutex}, thread, time::Duration};
+mod game_status;
+mod super_rotation;
+use std::{io::stdout, process::exit, sync::{Arc, Mutex}, thread, time::Duration};
 
-use crossterm::{cursor, event::{Event, KeyCode, KeyEvent, KeyModifiers, read}, execute, style::{Print}, terminal::{self, Clear, ClearType, enable_raw_mode}};
+use crossterm::{cursor, event::{Event, KeyCode, KeyEvent, KeyModifiers, read}, execute, style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor}, terminal::{self, Clear, ClearType, enable_raw_mode}};
+use game_data::GameData;
+use game_status::GameStatus;
+use mino_rotation::MinoRotation;
 
 use crate::{block::Block, rustris::Rustris};
 
@@ -31,7 +36,98 @@ fn main() {
         println!();
     }
 
-    let rustris = Arc::new(Mutex::new(Rustris::new((10, 21))));
+    let rustris = Arc::new(Mutex::new(
+        Rustris::new(
+            GameData::new((10, 21), true)
+        )
+    ));
+
+    {
+        let mut select = 0;
+        let mut rustris = rustris.lock().unwrap(); 
+
+        loop {
+            let mut stdout = stdout.lock().unwrap();
+
+            execute!(
+                stdout, 
+                cursor::MoveTo(0, 0),
+                cursor::Hide,
+                Clear(ClearType::All)
+            ).unwrap();
+
+            if select == 0 {
+                print!("> ");
+            }
+            println!("Play");
+
+            if select == 1 {
+                print!("> ");
+            }
+            println!("Ghost {}", 
+                if rustris.game_data.show_ghost {
+                    "ON"
+                } else {
+                    "OFF"
+                }
+            );
+
+            if select == 2 {
+                print!("> ");
+            }
+            println!("Quit");
+
+            match read().unwrap() {
+                Event::Key(KeyEvent {
+                    code: KeyCode::Up,
+                    modifiers: KeyModifiers::NONE
+                }) => {
+                    if select > 0 {
+                        select -= 1;
+                    }
+                }
+
+                Event::Key(KeyEvent {
+                    code: KeyCode::Down,
+                    modifiers: KeyModifiers::NONE
+                }) => {
+                    if select < 2 {
+                        select += 1;
+                    }
+                }
+    
+                Event::Key(KeyEvent {
+                    code: KeyCode::Enter,
+                    modifiers: KeyModifiers::NONE
+                }) => {
+                    match select {
+                        0 => {
+                            break;
+                        }
+                        1 => {
+                            rustris.game_data.show_ghost = !rustris.game_data.show_ghost;
+                        }
+                        2 => {
+                            std::process::exit(0);
+                        }
+                        _ => ()
+                    }
+                }
+
+                _ => ()
+            }
+        }
+    }
+
+    {
+        let mut stdout = stdout.lock().unwrap();
+        execute!(
+            stdout, 
+            cursor::MoveTo(0, 0),
+            cursor::Hide,
+            Clear(ClearType::All)
+        ).unwrap();
+    }
 
     {
         let mut rustris = rustris.lock().unwrap(); 
@@ -40,15 +136,36 @@ fn main() {
 
     let rustris_rc = Arc::clone(&rustris);
     let stdout_rc = Arc::clone(&stdout);
-    thread::spawn(move || {
+    let exit_flag = Arc::new(Mutex::new(false));
+    let exit_flag_rc = Arc::clone(&exit_flag);
+    let control_count = Arc::new(Mutex::new(0));
+    let control_count_rc = Arc::clone(&control_count);
+    let frame_thread = thread::spawn(move || {
+        let mut ground_flag = false;
+        let mut before_control_count = 0;
         loop {
-            thread::sleep(Duration::from_secs(1));
+            if *exit_flag_rc.lock().unwrap() {
+                break;
+            }
+            thread::sleep(Duration::from_secs_f32(0.5));
             {
                 let mut rustris_rc = rustris_rc.lock().unwrap();
                 if !rustris_rc.move_mino(1, 0) {
-                    rustris_rc.place_control_mino(Block::Block);
-                    rustris_rc.game_data.control_mino = Some(rustris_rc.get_next_mino());
-                    rustris_rc.game_data.mino_pos = (0, 5);
+                    if ground_flag {
+                        let control_count = *control_count_rc.lock().unwrap();
+                        if before_control_count < control_count && control_count < 15 {
+                            before_control_count = control_count.clone();
+                            ground_flag = false;
+                        } else {
+                            rustris_rc.place_control_mino(Block::Block);
+                            rustris_rc.next_mino();
+                            ground_flag = false;
+                            *control_count_rc.lock().unwrap() = 0;
+                            before_control_count = 0;
+                        }
+                    } else {
+                        ground_flag = true;
+                    }
                 }
             }
             {
@@ -74,6 +191,7 @@ fn main() {
             }) => {
                 let mut rustris = rustris.lock().unwrap();
                 rustris.move_mino(0, 1);
+                *control_count.lock().unwrap() += 1;
             }
 
             Event::Key(KeyEvent {
@@ -82,6 +200,7 @@ fn main() {
             }) => {
                 let mut rustris = rustris.lock().unwrap();
                 rustris.move_mino(0, -1);
+                *control_count.lock().unwrap() += 1;
             }
 
             Event::Key(KeyEvent {
@@ -90,6 +209,7 @@ fn main() {
             }) => {
                 let mut rustris = rustris.lock().unwrap();
                 rustris.move_mino(1, 0);
+                *control_count.lock().unwrap() += 1;
             }
 
             Event::Key(KeyEvent {
@@ -100,16 +220,8 @@ fn main() {
                 while rustris.move_mino(1, 0) { }
 
                 rustris.place_control_mino(Block::Block);
-                rustris.game_data.control_mino = Some(rustris.get_next_mino());
-                rustris.game_data.mino_pos = (0, 5);
-            }
-
-            Event::Key(KeyEvent {
-                code: KeyCode::Char('x'),
-                modifiers: KeyModifiers::NONE
-            }) => {
-                let mut rustris = rustris.lock().unwrap();
-                rustris.rotate_mino_to_right();
+                rustris.next_mino();
+                *control_count.lock().unwrap() += 1;
             }
 
             Event::Key(KeyEvent {
@@ -117,9 +229,33 @@ fn main() {
                 modifiers: KeyModifiers::NONE
             }) => {
                 let mut rustris = rustris.lock().unwrap();
-                rustris.rotate_mino_to_left();
+                if let Some(holding) = rustris.game_data.hold_mino.clone() {
+                    let control_tmp = rustris.game_data.control_mino.clone();
+                    rustris.game_data.control_mino = Some(holding);
+                    rustris.game_data.hold_mino = control_tmp;
+                    rustris.game_data.mino_pos = (0, 3);
+                    rustris.game_data.mino_rotation = MinoRotation::Up;
+                } else {
+                    rustris.game_data.hold_mino = rustris.game_data.control_mino.clone();
+                    rustris.next_mino();
+                }
             }
 
+            Event::Key(KeyEvent {
+                code: KeyCode::Char('c'),
+                modifiers: KeyModifiers::NONE
+            }) => {
+                let mut rustris = rustris.lock().unwrap();
+                rustris.rotate_mino_to_right();
+            }
+
+            Event::Key(KeyEvent {
+                code: KeyCode::Char('x'),
+                modifiers: KeyModifiers::NONE
+            }) => {
+                let mut rustris = rustris.lock().unwrap();
+                rustris.rotate_mino_to_left();
+            }
 
             Event::Key(KeyEvent { 
                 code: KeyCode::Char('q'),
@@ -158,6 +294,39 @@ fn main() {
                 }
             }
         }
+
+        {
+            let mut rustris = rustris.lock().unwrap();
+            if let GameStatus::Gameover = rustris.game_status {
+                let mut stdout = stdout.lock().unwrap();
+                execute!(
+                    stdout, 
+                    cursor::MoveTo(0, 0),
+                    cursor::Show,
+                    Clear(ClearType::All),
+                    SetBackgroundColor(Color::Red),
+                ).unwrap();
+                
+                let console_size = terminal::size().expect("Error: Cannot get console size.");
+
+                execute!(
+                    stdout,
+                    cursor::MoveTo(console_size.0 / 2, console_size.1 / 2),
+                    Print("Game Over")
+                ).unwrap();
+
+                thread::sleep(Duration::from_secs(3));
+
+                execute!(
+                    stdout, 
+                    cursor::MoveTo(0, 0),
+                    cursor::Show,
+                    Clear(ClearType::All),
+                    ResetColor
+                ).unwrap();
+                break;
+            }
+        }
     }
 
     {
@@ -169,6 +338,10 @@ fn main() {
             Clear(ClearType::All)
         ).unwrap();
     }
+
+    *exit_flag.lock().unwrap() = true;
+    frame_thread.join();
+    main();
 }
 
 #[cfg(test)]
diff --git a/src/mino_rotation.rs b/src/mino_rotation.rs
index 98faf83..195bf9a 100644
--- a/src/mino_rotation.rs
+++ b/src/mino_rotation.rs
@@ -1,4 +1,4 @@
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, Copy, PartialEq)]
 pub enum MinoRotation {
     Up,
     Right,
diff --git a/src/rustris.rs b/src/rustris.rs
index 126e633..c0fc0f2 100644
--- a/src/rustris.rs
+++ b/src/rustris.rs
@@ -1,17 +1,17 @@
 use crossterm::terminal;
 use rand::prelude::*;
 
-use crate::{block::Block, game_data::*, mino::Mino, mino_rotation::MinoRotation};
+use crate::{block::Block, game_data::*, game_status::GameStatus, mino::Mino, mino_rotation::MinoRotation, super_rotation::SuperRotation};
 
 #[derive(Debug)]
 pub struct Rustris {
-    pub game_data: GameData
+    pub game_data: GameData,
+    pub game_status: GameStatus
 }
 
 impl Rustris {
-    pub fn new(field_size: (usize, usize)) -> Rustris {
-        let game_data = GameData::new(field_size);
-        Rustris { game_data }
+    pub fn new(game_data: GameData) -> Rustris {
+        Rustris { game_data, game_status: GameStatus::Playing }
     }
 
     pub fn get_next_mino(&mut self) -> Mino {
@@ -33,15 +33,30 @@ impl Rustris {
     }
 
     fn rotate_mino(&mut self, rotation: MinoRotation) -> bool {
-        let original_rotation = self.game_data.mino_rotation.clone();
-        self.game_data.mino_rotation = rotation;
+        if let Some(mino) = self.game_data.control_mino.clone() {
+            let mut super_rotation = SuperRotation::new(
+                self.game_data.field.clone(),
+                mino.clone(),
+                self.game_data.mino_pos.clone(),
+                self.game_data.field_size.clone(),
+                self.game_data.mino_rotation.clone(),
+                rotation.clone()
+            );
 
-        if self.check_field() {
-            true
-        } else {
-            self.game_data.mino_rotation = original_rotation;
-            false
+            if super_rotation.rotate() {
+                self.game_data.mino_pos = super_rotation.mino_position.clone();
+                self.game_data.mino_rotation = super_rotation.now_rotation.clone();
+                if self.check_field() {
+                    return true;
+                } else {
+                    self.game_data.mino_pos = super_rotation.origin_position;
+                    self.game_data.mino_rotation = super_rotation.origin_rotation;
+                    return false;
+                }
+            }
         }
+
+        false
     }
 
     pub fn rotate_mino_to_right(&mut self) -> bool {
@@ -65,6 +80,18 @@ impl Rustris {
         }
     }
 
+    pub fn next_mino(&mut self) -> bool {
+        self.game_data.control_mino = Some(self.get_next_mino());
+        self.game_data.mino_pos = (0, 3);
+        self.game_data.mino_rotation = MinoRotation::Up;
+        if self.check_field() {
+            true
+        } else {
+            self.game_status = GameStatus::Gameover;
+            false
+        }
+    }
+
     fn rotate_to_right<T: Clone>(vec: Vec<Vec<T>>) -> Vec<Vec<T>> {
         let x_max = vec.len();
         let y_max = vec[0].len();
@@ -114,6 +141,8 @@ impl Rustris {
                             Block::Ghost => {
                                 field[(x as i32 + offset.0) as usize][(y as i32 + offset.1) as usize] = block_type;
                             }
+
+                            _ => ()
                         }
                     }
                 }
@@ -141,10 +170,13 @@ impl Rustris {
         let original_field = self.game_data.field.clone();
         let original_mino_pos = self.game_data.mino_pos;
 
-        while self.move_mino(1, 0) { }
-        self.place_control_mino(Block::Ghost);
+        if self.game_data.show_ghost {
+            while self.move_mino(1, 0) { }
+            self.place_control_mino(Block::Ghost);
+        }
+
         self.game_data.mino_pos = original_mino_pos;
-        self.place_control_mino(Block::Block);
+        self.place_control_mino(Block::Control);
 
         let console_size = terminal::size().expect("Error: Cannot get console size.");
 
@@ -159,10 +191,23 @@ impl Rustris {
             print_buffer += "\n";
         }
 
-        for _ in 0..(console_size.1 / 6) {
-            for _ in 0..console_size.0 {
-                print_buffer += " ";
-            }
+        print_buffer += "　　　　　Hold\n";
+        if let Some(hold) = self.game_data.hold_mino.clone() {
+            for shape_row in hold.shape {
+                print_buffer += "　　　　　";
+                for x in shape_row {
+                    print_buffer += if x {
+                        "■"
+                    } else {
+                        "　"
+                    }
+                }
+                print_buffer += "\n";
+            }   
+        }
+        print_buffer += "　　　　　Z ホールド, X 左回転, C 右回転\n";
+
+        for _ in 0..(if (console_size.1 - print_buffer.lines().count() as u16) > 0 { console_size.1 - print_buffer.lines().count() as u16 - 1 } else { console_size.1 - print_buffer.lines().count() as u16 }) {
             print_buffer += "\n";
         }
 
diff --git a/src/super_rotation.rs b/src/super_rotation.rs
new file mode 100644
index 0000000..bc2c6f7
--- /dev/null
+++ b/src/super_rotation.rs
@@ -0,0 +1,545 @@
+use crate::{block::Block, mino::{self, Mino}, mino_rotation::MinoRotation};
+
+#[derive(PartialEq, Debug, Clone, Copy)]
+enum RotateDirection {
+    Right,
+    Left,
+}
+
+pub struct SuperRotation {
+    pub field: Vec<Vec<Block>>,
+    pub target: Mino,
+    pub mino_position: (i32, i32),
+    pub origin_position: (i32, i32),
+    pub field_size: (usize, usize),
+    pub now_rotation: MinoRotation,
+    pub origin_rotation: MinoRotation,
+    pub next_rotation: MinoRotation,
+    rotate_direction: RotateDirection,
+}
+
+impl SuperRotation {
+    pub fn new(field: Vec<Vec<Block>>, target: Mino, mino_position: (i32, i32), field_size: (usize, usize), now_rotation: MinoRotation, next_rotation: MinoRotation) -> SuperRotation {
+        SuperRotation {
+            field, 
+            target,
+            mino_position, 
+            origin_position: mino_position.clone(),
+            field_size,
+            now_rotation,
+            origin_rotation: now_rotation.clone(),
+            next_rotation,
+            rotate_direction: SuperRotation::get_rotate_direction(now_rotation.clone(), now_rotation.clone())
+        }
+    }
+
+    pub fn rotate(&mut self) -> bool {
+        if self.target.id == "I" {
+            if self.step0() {
+                return true;
+            }
+            if self.i_step1() {
+                return true;
+            }
+            if self.i_step2() {
+                return true;
+            }
+            if self.i_step3() {
+                return true;
+            }
+            if self.i_step4() {
+                return true;
+            }
+        } else {
+            if self.step0() {
+                return true;
+            }
+            if self.step1() {
+                return true;
+            }
+            if self.step2() {
+                return true;
+            }
+            if self.step3() {
+                return true;
+            }
+            if self.step4() {
+                return true;
+            }
+        }
+
+        false
+    }
+
+    fn i_step1(&mut self) -> bool {
+        match self.origin_rotation {
+            MinoRotation::Up => {
+                match self.now_rotation {
+                    MinoRotation::Left => {
+                        self.move_to_left();
+                    }
+                    MinoRotation::Right => {
+                        self.move_to_left();
+                        self.move_to_left();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Right => {
+                match self.now_rotation {
+                    MinoRotation::Up => {
+                        self.move_to_right();
+                        self.move_to_right();
+                    }
+                    MinoRotation::Down => {
+                        self.move_to_left();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Down => {
+                match self.now_rotation {
+                    MinoRotation::Left => {
+                        self.move_to_right();
+                        self.move_to_right();
+                    }
+                    MinoRotation::Right => {
+                        self.move_to_right();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Left => {
+                match self.now_rotation {
+                    MinoRotation::Up => {
+                        self.move_to_left();
+                        self.move_to_left();
+                    }
+                    MinoRotation::Down => {
+                        self.move_to_right();
+                    }
+                    _ => ()
+                }
+            }
+        }
+
+        if self.check_duplicate() {
+            return true;
+        }
+
+        false
+    }
+
+    fn i_step2(&mut self) -> bool {
+        self.step0();
+        
+        match self.origin_rotation {
+            MinoRotation::Up => {
+                match self.now_rotation {
+                    MinoRotation::Left => {
+                        self.move_to_right();
+                        self.move_to_right();
+                    }
+                    MinoRotation::Right => {
+                        self.move_to_right();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Right => {
+                match self.now_rotation {
+                    MinoRotation::Up => {
+                        self.move_to_left();
+                    }
+                    MinoRotation::Down => {
+                        self.move_to_right();
+                        self.move_to_right();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Down => {
+                match self.now_rotation {
+                    MinoRotation::Left => {
+                        self.move_to_left();
+                    }
+                    MinoRotation::Right => {
+                        self.move_to_left();
+                        self.move_to_left();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Left => {
+                match self.now_rotation {
+                    MinoRotation::Up => {
+                        self.move_to_right();
+                    }
+                    MinoRotation::Down => {
+                        self.move_to_left();
+                        self.move_to_left();
+                    }
+                    _ => ()
+                }
+            }
+        }
+        
+        if self.check_duplicate() {
+            return true;
+        }
+
+        false
+    }
+
+    fn i_step3(&mut self) -> bool {
+        self.step0();
+        
+        match self.origin_rotation {
+            MinoRotation::Up => {
+                match self.now_rotation {
+                    MinoRotation::Left => {
+                        self.move_to_right();
+                        self.move_to_up();
+                        self.move_to_up();
+                    }
+                    MinoRotation::Right => {
+                        self.move_to_down();
+                        self.move_to_left();
+                        self.move_to_left();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Right => {
+                match self.now_rotation {
+                    MinoRotation::Up => {
+                        self.move_to_right();
+                        self.move_to_right();
+                        self.move_to_up();
+                    }
+                    MinoRotation::Down => {
+                        self.move_to_up();
+                        self.move_to_up();
+                        self.move_to_left();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Down => {
+                match self.now_rotation {
+                    MinoRotation::Left => {
+                        self.move_to_up();
+                        self.move_to_right();
+                        self.move_to_right();
+                    }
+                    MinoRotation::Right => {
+                        self.move_to_right();
+                        self.move_to_down();
+                        self.move_to_down();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Left => {
+                match self.now_rotation {
+                    MinoRotation::Up => {
+                        self.move_to_down();
+                        self.move_to_down();
+                        self.move_to_right();
+                    }
+                    MinoRotation::Down => {
+                        self.move_to_down();
+                        self.move_to_left();
+                        self.move_to_left();
+                    }
+                    _ => ()
+                }
+            }
+        }
+        
+        if self.check_duplicate() {
+            return true;
+        }
+
+        false
+    }
+
+    fn i_step4(&mut self) -> bool {
+        self.step0();
+        
+        match self.origin_rotation {
+            MinoRotation::Up => {
+                match self.now_rotation {
+                    MinoRotation::Left => {
+                        self.move_to_down();
+                        self.move_to_left();
+                        self.move_to_left();
+                    }
+                    MinoRotation::Right => {
+                        self.move_to_right();
+                        self.move_to_up();
+                        self.move_to_up();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Right => {
+                match self.now_rotation {
+                    MinoRotation::Up => {
+                        self.move_to_down();
+                        self.move_to_down();
+                        self.move_to_left();
+                    }
+                    MinoRotation::Down => {
+                        self.move_to_right();
+                        self.move_to_right();
+                        self.move_to_down();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Down => {
+                match self.now_rotation {
+                    MinoRotation::Left => {
+                        self.move_to_left();
+                        self.move_to_down();
+                        self.move_to_down();
+                    }
+                    MinoRotation::Right => {
+                        self.move_to_up();
+                        self.move_to_left();
+                        self.move_to_left();
+                    }
+                    _ => ()
+                }
+            }
+
+            MinoRotation::Left => {
+                match self.now_rotation {
+                    MinoRotation::Up => {
+                        self.move_to_left();
+                        self.move_to_left();
+                        self.move_to_up();
+                    }
+                    MinoRotation::Down => {
+                        self.move_to_right();
+                        self.move_to_up();
+                        self.move_to_up();
+                    }
+                    _ => ()
+                }
+            }
+        }
+        
+        if self.check_duplicate() {
+            return true;
+        }
+
+        false
+    }
+
+    fn step0(&mut self) -> bool {
+        self.now_rotation = self.next_rotation.clone();
+        self.mino_position = self.origin_position.clone();
+        if self.check_duplicate() {
+            return true;
+        }
+
+        false
+    }
+
+    fn step1(&mut self) -> bool {
+        let rotate_direction = self.rotate_direction;
+        match self.now_rotation {
+            MinoRotation::Right => {
+                self.move_to_left();
+            }
+            MinoRotation::Left => {
+                self.move_to_right();
+            }
+            _ => {
+                if self.origin_rotation == MinoRotation::Left {
+                    self.move_to_left();
+                } else {
+                    self.move_to_right();
+                }
+            }
+        }
+
+        if self.check_duplicate() {
+            return true;
+        }
+
+        false
+    }
+
+    fn step2(&mut self) -> bool {
+        if self.now_rotation == MinoRotation::Right || self.now_rotation == MinoRotation::Left {
+            self.move_to_up();
+        } else {
+            self.move_to_down();
+        }
+
+        if self.check_duplicate() {
+            return true;
+        }
+
+        false
+    }
+
+    fn step3(&mut self) -> bool {
+        self.now_rotation = self.next_rotation.clone();
+        self.mino_position = self.origin_position.clone();
+
+        if self.now_rotation == MinoRotation::Right || self.now_rotation == MinoRotation::Left {
+            self.move_to_down();
+            self.move_to_down();
+        } else {
+            self.move_to_up();
+            self.move_to_up();
+        }
+
+        if self.check_duplicate() {
+            return true;
+        }
+
+        false
+    }
+
+    fn step4(&mut self) -> bool {
+        let rotate_direction = self.rotate_direction;
+        match self.now_rotation {
+            MinoRotation::Right => {
+                self.move_to_left();
+            }
+            MinoRotation::Left => {
+                self.move_to_right();
+            }
+            _ => {
+                if rotate_direction == RotateDirection::Right {
+                    self.move_to_left();
+                } else {
+                    self.move_to_right();
+                }
+            }
+        }
+
+        if self.check_duplicate() {
+            return true;
+        }
+
+        false
+    }
+
+    fn move_to_right(&mut self) {
+        self.mino_position.1 += 1;
+    }
+    fn move_to_left(&mut self) {
+        self.mino_position.1 -= 1;
+    }
+    fn move_to_up(&mut self) {
+        self.mino_position.0 -= 1;
+    }
+    fn move_to_down(&mut self) {
+        self.mino_position.0 += 1;
+    }
+
+    fn check_duplicate(&mut self) -> bool {
+        let shape = self.target.shape.clone();
+        let pos = self.mino_position;
+        let field = self.field.clone();
+        let field_size = self.field_size;
+        for x in 0..shape.len() {
+            for y in 0..shape[x].len() {
+                if shape[x][y] {
+                    if  (x as i32 + pos.0) < 0 || 
+                        (x as i32 + pos.0) > (field_size.1 - 1) as i32 || 
+                        (y as i32 + pos.1) < 0 || 
+                        (y as i32 + pos.1) > (field_size.0 - 1) as i32 {
+                        return false;
+                    }
+                    match field[(x as i32 + pos.0) as usize][(y as i32 + pos.1) as usize] {
+                        Block::Block => {
+                            return false;
+                        }
+                        _ => ()
+                    }
+                }
+            }
+        }
+
+        true
+    }
+
+    fn get_rotate_direction(before: MinoRotation, after: MinoRotation) -> RotateDirection {
+        match before {
+            MinoRotation::Up => {
+                if after == MinoRotation::Right {
+                    RotateDirection::Right
+                } else {
+                    RotateDirection::Left
+                }
+            }
+
+            MinoRotation::Right => {
+                if after == MinoRotation::Down {
+                    RotateDirection::Right
+                } else {
+                    RotateDirection::Left
+                }
+            }
+
+            MinoRotation::Down => {
+                if after == MinoRotation::Left {
+                    RotateDirection::Right
+                } else {
+                    RotateDirection::Left
+                }
+            }
+
+            MinoRotation::Left => {
+                if after == MinoRotation::Up {
+                    RotateDirection::Right
+                } else {
+                    RotateDirection::Left
+                }
+            }
+        }
+    }
+}
+
+#[cfg(test)]
+mod super_rotation_test {
+    use super::*;
+
+    #[test]
+    fn get_rotate_direction_test1() {
+        assert_eq!(SuperRotation::get_rotate_direction(MinoRotation::Up, MinoRotation::Right), RotateDirection::Right);
+    }
+
+    #[test]
+    fn get_rotate_direction_test2() {
+        assert_eq!(SuperRotation::get_rotate_direction(MinoRotation::Down, MinoRotation::Right), RotateDirection::Left);
+    }
+
+    #[test]
+    fn get_rotate_direction_test3() {
+        assert_eq!(SuperRotation::get_rotate_direction(MinoRotation::Left, MinoRotation::Up), RotateDirection::Right);
+    }
+
+    #[test]
+    fn get_rotate_direction_test4() {
+        assert_eq!(SuperRotation::get_rotate_direction(MinoRotation::Right, MinoRotation::Up), RotateDirection::Left);
+    }
+}
\ No newline at end of file