Best two player PS2 games?

Well, I've got a crapload of single player action games and RPG's, but very few multiplayer games other than Nightfire and Soul Calibur 3 (which is awesome but has an extremely annoying glitch with memory cards). What non-MMO games would you guys recommend for two or more people to play on the PS2?

If you both love RPG's, and can get involved in a story together, you can't go wrong with Legend of Mana. Though it is a bit dated, and for PS1.

My brother, friends and I had an absolute blast with the Champions of Norrath games. It's entertaining, fast paced 4-player action. What more can you ask for?

Oh, Tales of the Abyss supports 4 players too, if you need a deeper JRPG.

Champions of Norrath and its sequel or predecessor or whatever are fantastic games. I've played them on several occasions with my friends, and we all had a blast.
X-Men Legends II is fantastic, as well. It's very similar to the aforementioned, but with X-Men.
If you're into racing games, you cannot go wrong with Gran Turismo 4, which also happens to be one of my favorite games of all time. :3


<3 Nightfire and Soul Calibur.

Gran Turismo

Time splitters 2 if you like FPS multiplayer.

Time splitters 2 if you like FPS multiplayer.

Yeah, I totally forgot about TS2. It's a must if you like first person shooters.