FILL ROWS or COLUMNS with blocks.
You get 3 POINTS for PLACING a block and 10 POINTS for each line CLEARED.
When a block CANNOT BE PLACED it counts as a MISS (shown as an X).
Competitive Mode - Score points for yourself and try to cause your opponents to MISS. 3 MISSES IN A ROW and the round is over.
Cooperative Mode - Work together to get a high score. 3 MISSES TOTAL and the game is over.