In this game you shoot stuff before it comes at you.
Well, what's the craziest stuff you can think of? make a .png (or .jpg if you must), put it in the "enemy" folder. Post it here! Collect random invaders!
Size will be mantained, so keep the size around 128x128.
Inspired by Megamania, old ATARI game.
ADDENDUM: around 128x128 is for large enemies, 64x64 makes good smallish enemies. More or less than that and you'll wind up with either one huge enemy or a jillion small ones.
(the game spawns enough enemies to fill the screen depending on the image size)
Drag the images from the forum to your enemies folder!