Space Invaders [Model 2009]

Released as part of the Action/Skill Series.

Later known as Astro Battle. This cartridge has part numbers 2006, 2008 and
2009.

Known bugs:
- If there is only 1 invader left, you sometimes will get points for shooting your own bunkers.
- If you make it to wave 7, the invaders will already be on the ground, and the game will end! If you're lucky, you may hit 1 just as the screen appears.

Written by: Bob Ogden