Most amigas here in the states used one button joysticks, and even if you had a two button that was pitiful compared to any console. The nes had 2 action buttons plus select and start. The genesis had a,b,c and start for the 3 button.
I saw an article in Amiga Format once about how amiga users were shooting themselves in the foot by not upgrading, with hard drives etc.etc. and said something about the "wobbly old one-button joysticks" from the early '80s still being used.
There were some games of course that used two, but the fact that it was an option, and almost all games defaulted to the one button says something.
I hated up for jump...