Haha i thought that was the Hulk the first time i saw that to its actually Liu Kangs ghost.

Ive seen him too, my friends say I saw molche, but moloche doesnt wear ripped purple pants, and his skin isnt green either. Anyway I saw him too so you arent crazy

Aso. It all seems so clear to me now. That makes so much more sense than the hulk. Thanks for clearing that up.

haha-
maybe it 's reptile? from i think it was "Mortal Kombat: Gold" on dreamcast looked that way, or maybe it was just MK4 in general.

MK4 Reptile had the purple pants green skin. I really doubt its the Hulk that you saw. A Marvel Vs. Mortal Kombat game, come on lets get real here, that'll never happen. Its MK4 Reptile because you also see him in Konquest and the "Dark Prison" stage...Bring Back Reptile...

I know it's not Reptile because the person has hair, no shirt, and pants, but I also do not believe that the Hulk would be in the game. Just something I saw and thought. If anything it's the ghost of Liu Kang.