As a follow on the best games thread what about the other end of the spectrum?
I'm not so sure about the worst game but amongst the most infuriating are Mortal Kombat 2 on the home machines, SNES and Megadrive. This game had me throwing control pads at the walls it was so bloody difficult! I broke a couple of SNES controllers playing this. One got smashed against a wall and another just got snapped in half I was in such a rage Never been as mad or angry since then!
Another game which I love but is ridiculously hard is the Ghosts n Goblins/Ghouls n Ghosts series.
Pixel perfect jumps and lightning reflexes required for this game made it so damn difficult. Only ever finished it twice in my entire years of playing it. Still have it on the PSP and give it a blast now and again.
Worst game ever played...? Not sure. Didn't get much enjoyment out of Sim City.