Megazap

Megazap is a side view single screen shooter where you control a spacecraft, moving left or right, at the bottom of the screen blasting various aliens and meteors above over various levels. Each level has a set type of alien or meteor and these move in various waves like moving across the screen in formation, breaking from formation or just falling down the screen. The aliens will drop bombs and if you hit an alien, bomb or meteor then you lose one of three lives.