You know how to play Tetris, right?
Keys:
- J, Left Arrow
- Move piece left
- L, Right Arrow
- Move piece right
- K, Up Arrow
- Rotate piece (counter clockwise)
- Space, Down Arrow
- Drop piece to the bottom
- N
- Toggle display of the next piece (you get a lot more points when the next is hidden)
- P, ESC
- Pause the game
- I
- Increase the level
- +, -
- Grow or shrink the game
