There's more unused leftovers in this game than used sprites! Since it used The World Warrior graphics and Champion Edition updates literally as a base, it means that it has a lot that's still in the ROM. Ken's head enough so you could hack Ryu into Ken, Vega/Claw's hand, the little plane from the character select and the flags, the character names from the VS screen, parts of Dhalsim's sprites, The World Warrior text, the various endings (Zangief, Ken, E. Honda, Blanka, Guile), the intro, various stages (Barlog/Boxer, Zangief, Sagat, Blanka, Vega/Claw). Most of the other fighters were either blanked out but kept to its position in the ROM wasting a LOT of space or overwritten with the new graphics (Ryu, Chun-Li, cutscene, new title screen+text, HUD, selection circle).

I've heard of sloppy coding but haven't seen it in a game this bad until I saw this.

For the uninitiated, this is a Whack-a-mole game based on SFII, using Bison as the moles.