Ghostbusters also supports it. Just a heads-up.
I wish more games supported it. I'm suprised the classic arcade games like Rampart, MKII, Puzzle Fighter etc. don't support it!
MK2 and Rampart (Rampage?) were among the first games to be on PSN (if not THE first), so obviously the feature wasn't implemented. Puzzle Fighter was released before the feature became available as well. They all could patch it up, but since it rarily sparks up any sales the companies probably just don't want to "waste" those resources. Though a few did patch up, like PJ Monsters and Super Stardust.
Someone make a update Official List please tOo many pages my eyes hurt from reading AAAAAAAAAARRRRRRRRRRRRRGGGGGGGGGGGGGGG!!!!!!!!!!!!