I agree with Mr. Dr. Bean having audio would have been massive for this game, audio can cause a massive change for a game. The boss fight you could sit at the very bottom and only have to worry about the guy going back and forth in the middle. Fights against bots were easy once you got the hang of how they worked staying horizontally on them at the bottom keeps you out of harms way. Also when destroying the tubes you could hide behind them to not die from other enemies. This is a secret favorite of mine.