Spyders for Commodore 8032/SuperPET

8032 / SuperPET version of the mini space invaders game Spyders. I was going to add more aliens to shoot, but I can't compare to Jimbo's Space Invaders II.

Source code included. Based on Mr. NOP's original 4032 version.

Suggested improvements: sound, keyboard matrix reading instead of location 151. But I know I'll never get to it.