Avoid the aliens and missiles with arrow keys. Spacebar to shoot.
Modified "Space Swarm" from "Scratch Programming" book. I added the score and music at the end and the shooting alien. I JUST ADDED A BOSS LEVEL!!! Get through eighty seconds and meet the MAGICAL ALIEN BAT!!!! (An his minions!) He takes a while to destroy. (Also, not every shot hurts the boss. That's why it takes a little while.) Got rid of the bugs! All of them! (except one rare bug.)
