@sammyfox
I don't understand the Commander Keen thing at all. I actually prefer Altered Beast on the Atari ST and that was considered a bad game! Fine I understand the PC hadn't demonstrated smooth scrolling until that game and iD pushed the envelope on the technical side. However, in the 286 days it must have been an exercise is polishing a turd in the sense the PC was so behind the Amiga which could do parallax scrolling and Commander Keen looks like it's using the 8-bit Paperboy palette. Dizzy, Ruff N' Tumble, Fire & Ice, etc etc were all better games than that joke.
Was it just a case of most American families already had a PC because daddy needed it for work and the whole continent went crazy for a mediocre game on a machine they already had?
Back on thread. Keyboard controls and mouse works for RTS and first person shooter games but that's it. Joysticks and gamepads are far superior for arcade games like Commander Keen tried to ape.