What's considered good that they can they put on it?
Super Mario 64
Zelda OOT
Zelda MM
DK64
Diddy Kong Racing
Starfox 64
Mario Kart 64
Smash Bros.
Yoshi's Story
Mischief Makers
Wave Race 64
F-Zero X
And then I'm running out of stuff to think of. They can't have licenses like Goldeneye, Beetle Adventure Racing, and those Aki WCW/WWF games and I assume the other Rare games like Conker, Banjo, Perfect Dark, and KI are out.