Alien Invaders—Plus!# 9428

This game was inspired by Space Invaders of course, but really doesn't measure up. Still, Odyssey² arcade clones were notable for adding a "twist" to their coin-op inspirations, and this one is no different. The big twist here is the Merciless Monstroth, which replaces Space Invaders' flying saucer. The saucer was a harmless target; the Monstroth is a deadly menace. This game also features an interesting twist when your laser base takes a hit. When struck, the laser base vanishes, leaving your robot pilot vulnerable to enemy fire. But if you can guide the pilot to one of your fireproof bunkers without being hit, you'll acquire a new ship!