I thought I'd say a bit more about it -- Muffins is a game I built for a quick thing to play with my friends in lectures. As I cleaned up the code and played it some more with my buddies and added maps, I felt that I should port it to Windows and Linux from my ever-present Powerbook.
As such, the enemy AI is fairly lacking (some people will call them "retardedly suicidal") but they can put up a decent fight.
I recommend you download it from the GD Showcase, if only to increment the little value that says "Downloads".
It's very fun with 2 players. If my laptop had a bigger keyboard I probably would have added four! [wink]