I thought the Gears rip-off was humorous.
As was the snake eyes (metal gear solid 4), and rainbow sprinkles comedy spurts.
I got this game for the PS3 because I couldn't care less about any achievments for this game, and I've been wanting to play online with a local friend of mine which turned out to be freakin' so much fun. I also like the simple humour in this game, as I've noted beforehand.