I really enjoyed this game, especially as I spent time playing the original version in the arcades. Makes me wish I had a G-Con45 instead of a mouse!
My only feedback is that the enemies are a lower fidelity sprites than their backgrounds which makes it a littler disorientating to spot where they are and what they're doing - especially on full screen where there are lots of enemies. This game on mobile would be wonderful too - loved the presentation and intro. Well done!
yeah, when I started the game the first thing I drew was the bad guy sprites I went with super simple because I figured it would be better to have super simple sprites with many frames of animation instead of the opposite but as time went on I got better at sprite art and my background got more detailed which lead to the problem of low pixel count badguys with high pixel count background I know I should really start redrawing them all but ........boy howdy that's a lot of work :)