Megamania
Activision (1982)
One of my favorite games in the Atari 2600 library is turning 30 years old today. It was designed by Steve Cartwright, and has a play style similar to Space Invaders in that you control a spaceship at the bottom of the screen and the object is to shoot all of the enemies at the top before the time (or energy bar) runs out. However those enemies differ quite a bit from the 1978 Taito classic. They come in waves with each one behaving differently than the wave that came before, and they take forms that are very different from the alien spaceships that gamers were familiar with, including hamburgers, cookies, bugs, tires, diamonds, irons, bow ties and dice. It's a hell of a lot of fun.