It's a Konami made platformer that often feels more like a shooter. It starts off a little slow, but the game gets more and more extreme as it goes along. I seriously thought I was at the end of the game like 5 different times due to not thinking they'd be able to top what they just did. It's a shame that the sequels don't quite capture what made this game work so well. Anyway, it's cheap enough that there's no excuse to not have it in your Genesis collection.