On the final level when you confront Drax, walk forward and when the first fireball comes, jump, then do a forward roll into Drax. If you can't even get that far then the best way to defeat an opponent is to roll into him until he reaches the side, then kick him, roll in to him again and kick him, keep repeating this method and you'll soon finish the game.

Level 1: left, left, right seven times, left, right, left, in the cave, and right.

Level 2: right, up, left, up, left, left, right, left three times, up, and left.

Level 3: up, right, right, up, left, right, up, right, left, left, up, left, left, up, up, right, right, left, left, up.

Level 4: hit the fireballs, then try to leap across. Several low chops will destroy it. Next is the Pit Demon; when he reaches out, use an overhead chop to hit his arms. Repeat until death. Next, Drax himself! Wait until he pauses between spells, and hit him with a flying head chop.