Early preteen childhood, Mouse Trap (was able go beyond the limits of the highscore counter with ease) and Donkey Kong on the Coleco Vision.
Early teen, Dungeon Master and later Lemmings, Lotus Esprit Turbo challenge, Super Cars 2 and Alien Breed multi-player fun on the Amiga and the great 'Super Mario World' on the Snes. Also Turrican 1 & 2 (c64 and Amiga versions), IMO a great gaming period.