Version: 0.1
Released: 11-10-2007
Available: [Link]
Release Notes:
- Basic Engine in place.
- Some enemies created.
- Basic upgrade system.
- Ammo varience created.
- Basic score system.

Version: 0.2
Released: 26-10-2007
Available: [Link]
Release Notes:
- New enemy
- High scores
- Game over condition.
- Upgrade system improved.
- Preloader
- Improved interface

Version: 0.3
Released: 07-11-2007
Available: No*
Release Notes:
- Scores that don't submit (due to school game filters)
  now get emailed to me so I can submit them later.

* Version allowed players to submit scores to normal high score table with survival mode.

Version: 0.4
Released: 01-12-2007
Available: [Link]
Release Notes:
- New mode with new enemies!