-Diablo 2. I used to play this game a ton. It took TASing to get me out of that addiction. An addiction to get rid of an addiction. Woo!
-Mario Kart 64. After I had started TASing MK64, I took my old cartridge that the family had and beat all 16 Time Trial records on it. Anyone I played, I used the speedrunning tricks I'd learned. I have yet to lose to anyone I played with.
-Super Smash Bros. I still play this game to death. I am quite good at most of the characters (I suck at Link, Samus, Luigi, and Fox. All others I am proficient with). Ness is my top choice, I can consistently double jump cancel like
this and have consistently beaten 3 lvl 9 CPUs teamed up against me when using Ness, Pikachu, Yoshi, and DK.
-Mischief Makers. Only recently did I get this on cartridge, but I am mere hundreths of a second from beating the real time WR's on 2 of the stages.
So those are the main ones.