hmm... Id say... Graffiti Kingdom, because you can draw your own monsters and set their attacks and stuff, and theirs multiplayer. That all makes up for the stupid plot and extreme shortness of the game. Also, Ape Escape Pumped and Primed, because its so fun to finally be able to kill my friends in multiplayer with the gadgets ive been using to catch monkeys for so long. And of cource, KATAMARI!