Blockaboo!

Blockaboo! is a 1–2 player Tetris variant for the 8-bit Atari.

Shapes containing four blocks fall from the top of the screen, and the player can rotate and move them left or right to place them on the bottom of the screen. When the player completes a line, it disappears. If the blocks pile to the top of the screen it's game over. The player can pick up swirls that help rearrange the board. The player can set the starting difficulty level, whether the next block shape is shown, and a handicap for either player.