Had a go on the TMNT IV arcade and, boy, that game is pretty bad. I honestly didn't expect that considering how much i loved Turtles in Time on the SNES... Now, the graphics look a bit better but the gameplay simply isn't a match for the SNES port. In the arcade version the hit detection is bad, the hits lack any sense of power, the Turtles skate on the floor in the middle of their combos, the combos don't always complete their animation cycle and look like using just random animations... It feels like a broken version of the SNES game. On SNES, the controls are tighter, the hit detection is great, the hits feel powerful, it's just much more satisfying to play.