Space Zombies
- 0.45 -
Made the aiming system more accurate. Replaced particle system with newer version.

- 0.44 -
Made it so you have to start the game one it has been opened, and added retry option to game over screen.

- 0.43 -
Made it so that enemies don't pile up on top of each other.

- 0.42 -
Added audio for you exploding and enemies exploding.

- 0.41 -
Made particles semi-transparent.

- 0.35 and earlier -
Unknown changes.