It's not too bad, but there are only a few little issues I had with it. Some glitch/stupid deaths (If you go left you die. Some of the enemies you think you can jump on, will kill you. Trying to jump over some enemies will somehow kill you, especially if you think you're completely over it.), the lack of power ups, the simplicity of the levels, the Bower fight level (I'm sure you've heard all the varieties of complaints over the level, but there is only two issues I had with it. The way you enter the area and the speed of the shells. ), also the only other thing I felt held the game back from being better was that you couldn't get a game over. IE: Continue Counter reaching the minus level, instead of ending. Other then that, it's not too bad of a game and I would certainly consider playing an updated version of it, if you ever made a sequel.