The Charging Photon is your most powerful weapon. Unleashed is pretty good. Each of the levels have been filled with many different enemy ships. Each level has its own unique Sinistar. Each of the Sinistar ships have a different strategy for attacking you, and each will require a different tactic for you to destroy them.
Sound effects are appropriate.
Needless to say, I about fell out of my chair when the voice came on. Another nice touch is force-feedback support. Music has been added to this game, and I wasn't too thrilled with it. It just doesn't fit into the game at all. I think that type of music would have been a better fit.