It runs very well, and the controls are great, just set L and R to shoot left and right, and A and B to shoot up and down. Takes some getting used to though.
I've never checked out the SNES version, but you can always pick up the Game Gear version. Runs perfectly...
DISCLAIMER:
Owning ROMs to a game you don't own the original cartridge of is illegal. Any ROM of a game you download that you do not own needs to be deleted within 24 hours. If you fail to do so, you will be prosecuted blah blah blah... :lol: :lol: :lol: