2D Shooter Game

I am willing to bet this is your first game, so I'll point out some things that you'll need to fix in future. Negative numbers (health, ammunition) need to be fixed. I can fire while reloading, which is a problem. Attach a boolean that's true when reloading and false when not and make it so you can only fire when it's false. The enemies face the wrong way at times. I can only have one bullet on screen at once. Fix these issues and you'll have a good foundation for a game.

I reckon if you fixed up a few things this could be playable

Umm, I'm at negative health?

trash!