Over and over and over...

[TheDustyBanana]

Donkey Kong Country 1 & 2 (don't even know how many times I've played through them)
Final Fantasy VII (played roughly 9 or 10 times in one semester of seventh grade alone)
Kirby Superstar (because for some reason the game keeps getting erased randomly)

 

[Librarian Mike]

Every 3-4 months I run through all the Metroid games...and I love every second of it.