Probally the best action NES game than Double Dragon or Contra.
Your probally thinking right now, "Why the forget are you posting a 20 year old game?"
Well it's a classic, and a number of people probably know what this game is. Also I just got the NES out again and I put a good amount of time playing games on it too.
Oh, screenies you may ask?

I may livesteam this but if I believe the law for emulation is if you actually own the game you CAN emulate it, which I do well own the game. But either way it's much better if he just streams his TV screen :3.
Gameplay video:
http://www.youtube.com/watch?v=NfwLBk1zvrwDiscuss.