The game is available for PC, PSP, PS2, and Xbox
Has a ton of unlockables and replay value ;)
I picked up the PS2 version recently and I'm addicted.
But here are my complaints about the game (only applies to PSP and PS2 versions) :
-No way to chat with other players during online play
-A little frame rate drops in Heart Attack mode
2 complaints... thats not a lot...
Whichever system you own I suggest picking this game up... but I would recommend waiting for the PC version if your going to play it online a lot... reason being there is no extra fee (like Xbox live) and probably not a lack of communication tools (PS2) in that version.