The Spriters Resource Game-A-Thon

[Dazz]

What I recall is:

Altered Beast
Doom (Chapter 1)
Doom II (Didn't finish, did the first 6 levels or something though)
Double Dragon
Final Fight
Golden Axe
Gunstar Heroes
Metal Slug 3
Smash TV
Sonic 2
Streets of Rage 2
TMNT
Track & Field (a fair few times)
X-Men Arcade
Sunset Riders
Kirby's Dream Land 3
Bad Dudes vs. Dragon Ninja
Mug Smashers
Knights of the Round
You Don't Know Jack
Deadliest Warrior 2
Family Feud (SNES)
Bomberman 3 (?)

I'm sure there were more...