Brain Breaker is perhaps one of the oddest Tetris variation I've played in years. In it, the player basically has to remove red blocks to cause damage to the man in the inset window. His health gradually decreases as you hurt him, and you will win the round if you can reduce his HP count to zero.

Occasionally a needle will appear from the top of the screen, and once it has been placed all of the white blocks the needle is pointing at will turn red. Any empty holes will be filled with red boxes as well, but only for a single column or row per needle.

There are three rounds to play through in this game. You can find Brain Breaker at Mogera.jp.