PS3 games with local co-op

[realill]

Resistance 2 got split screen co-op, but you should play online with other guys, since it difficault to play R2 co-op with two people.

Trine, LittleBigPlanet, Resistance 1, Fighting games
Ethornal Sonata alows second player to control one of the characters

Army Of Two - coop driven.
http://www.co-optimus.com/system/2/playstation_3.html

Here is a good source for tracking such games.