Hand held games really started to boom in the 1980's and I was on the band wagon early and often. One of my favorite games was FireFox-F7 (1983), apparently not related to the Clint Eastwood film of the same era. I thought it was great at the time, looking back I cannot see the fascination, but I am now brave enough to say that back then I was a game-aholic ... there was also a version repackaged as Galager.
The Irishm'n found one of his favorites at the Hand-held museum, an [American] Football game that required more imagination than skill. The player with the ball was apparently a flashing led. When lights collided it constituted a tackle! Wow!
Kids today are so spoiled!