Dragging this back on topic:
I've always liked Jigoku Meguri. It's what I would call good honest platforming, has some lovely backgrounds (with only a few areas that are horribly basic), appealing sprites and jaunty music. Level 2 in the boat is a nice touch and it's just one of those games which is fun to play while still allowing you to test those jumping and dodging reflexes. No as good as PC Genjin, but certianly better than Hero Tonma.