MORE SPRITES INSIDE! I made variants of Starman, so please look at them! All art by me. It was pretty hard, but I'm satisfied with it. Also, the last Starman in the sprite has a nice little easter egg on it... :P
Audrix. For the variants, just make up whatever stats you want. The shiny variants are NOT intended to be different enemies, but you can use them if you want. I think it'd be a good idea if you had to fight a Starman every 5 or so levels, getting up to a higher rank each fight.