Chipy

## Description

_Chipy_ is based on the game Tetris where various coloured shapes called
stones fall down the screen and the player has to move them left or right to
place them below. If a full line fills the playing area across then that line
disappears but if a gap remains in the line as the shapes land on top then the
line stays. As well as moving the stones left or right, the player can also
make the stone land below instantly, and turn the stone round. Once the stones
reach the top of the playing area then it is game over.

Chipy