My father and I wore out the controllers playing Intellivision baseball...those were the days.
Yeah, the baseball game was addictive. I liked Space Armada quite a bit, too. Remember the aftermarket "joysticks" that could be added to the controllers?
Speaking of controllers, that was a perennial weak spot with many console games. The 2600 joysticks were simple and stout, but the Atari 5600 and 7800 controllers were always in demand as replacement parts. The Intellivision controllers were a bit fragile, too - more so than those of the ColecoVision/ADAM.