Jattack is a simple game based loosely on Tetris Attack for the Game Boy.
Rather than falling from above, rows of pieces rise from below. You can swap a piece with it's neighbour on the same horizontal line. If you create a run of 3 or more identical pieces, they're removed from the board.
As time goes on, the game moves faster. The aim is to survive as long as possible.
Changes in 1.1 include extra points for multiple matches.
Changes in 1.2 are related to packaging
In 1.3, the clicked cell is highlighted