This is THE rarest game from Cinematronics, and even rarer in that it's in color! (Whether the ROMs I have support color or if it's just via the magic of emulation, I don't know.)

Your rolling turret has its hands full shooting down alien invaders. Blast them before they unleash their white death rays, which strafe across the bottom of the screen; you have a shield to save yourself, but it's got a limited lifespan. Blue bullets paralyze you temporarily, and the onslaught just doesn't stop.

The game is a bit repetitive, but it's the coolest looking game on the emulator, by far.

(If you are using a text browser, download the War of the Worlds screenshot here.)