So, I read the comment from the individual claiming it's too hard, so I had to check the game out. I was able to play for a bit, but when the enemies touch the buildings or even your ship touches it, the screen flashes like crazy. Idk if this is what it does on stock hardware as I'm playing on an Ultimate 64. Which, if you don't know what that is, it's an FPGA board that you can put into a real C64 shell and use an actual C64 keyboard. Anyways, back to the flashing. It's very much like a strobe flashing and as someone who has had seizures in the past, I had to stop playing. I'd be happy to do some more testing once that's fixed. Hope the feedback helps.