The original Shooter Game. Upgrade and defend your base from the incoming squares! Each square has different properties.
Sometimes, I'm unable to shoot. This is especially annoying when it happens when orange enemies appear. Also, about the orange enemies, they are extremely annoying. I've had a pretty hard time killing them as they zip across the field.
And now my final gripe: The game is occasionally unfair. I don't know how hard this could be to code, but making it so blue, brown, and black enemies don't appear until you're total score gained reaches, say, 2,000 would be a good idea.
Please don't take this as me hating your game. This game is wonderful and deserves more recognition. It just has a few flaws.