Sonic 2, 3 & tails and knuckles
Shinobi 3
X-Men 2
Super Mario Bros
Contra
Gunstar Heroes (battle against seven in the tunnels best boss fight on Sega Genesis)
Streets of Rage 2
Battletoads
Double Dragon 2 (nes)
Battle toads & Double Dragon
Kirby Superstar
Joe & Mac
Kid Chameleon
dikk Tracy
Ninja Gaiden
TMNT
Earthworm Jim
Disney World of Illusion
Aladdin
That's all I can think of rn