I am not a humongous fan of video games, but hey, there's some that I don't fail at.

• Sims, Sims 2, Sims 3 (You can't lose :P).
• Need 4 Speed: Carbon (Won this game twice! I'm quite the drifter).
• Animal Crossing (I like the version best on GameCube).
• Super Smash Bros. Melee
• Super Mario 64 (on Nintendo 64)
• Every single Pokemon ever. (From when the Gameboy first came out to Nintendo DS.)
• Roller Coaster Tycoon.