- Programming language: JavaScript
- Main size: 1,8 KB
- Extra size: 123 B
- Total size: 1,9 KB
- Feature count: 15
- Bytes per feature: 120 B
- Ctrl+R or ⌘ Cmd+R: restart
- Ctrl+W or ⌘ Cmd+W: quit
- Any Key: start game
- ↑: rotate clockwise
- ←: move left
- ↓: soft drop
- →: move right
- Any Key: retry
- All tetrominoes
- Drop: soft drop
- Game over detection
- Game over screen: game over text
- Gravity
- Horizontal movement
- Line clearing
- Line clear points:
- Single: 1
- Double: 2
- Triple: 3
- Tetris: 4
- No bugs
- Quit: close tab
- Restart: refresh page
- Retry
- Rotation
- Sleep mode: from OS
- Title screen