The villian is some sort of evil sorceror who can't be killed because his beating heart is stored inside a crystal ball-like thing. The hero has to distroy the heart before he can kill the bad guy. He has to go through a bunch of obstacles, including a giant hand with spikes on it. The hand is what I remember most! It has a life of its own. When the hero tries to get by, the mechanical hand comes crashing down and tries to squash him. Comically the hand raises back up, extends its index finger and shakes left and right, as if to say,"Naughty-Naughty, that's a no-no". People I have talked to, remember seeing the movie but nobody can remember any names.