It's hilarious!
Do you remember that tetris game in the plague village in Monty Python & the Quest for the Holy Grail? When figures were made of dead bodies thrown into the hole and some of them were still alive? I haven't laughed this much at a tetris game since then!
It's anti-tetris in a way. The original game was about order and putting everything in it's place (even gave birth to "tetris effect" phenomenon). And this... Ah...
Especially I enjoyed the brute force tactics, when you just squish those poor bastards with space key till they start making lines.