Published by OneSwitch.org.uk Thursday, 1 June 2006 10:46 am.
Following on from the Star Trigon post, there are at least four other essentially one button coin-op games.
Atari's 1977 Canyon Bomber, Sega's Osharemajo Love and Berry and Cave's Uo Poko and Mushimetama. How many of those do you think you'll ever play?!