Monty Pythons Flying Circus - ST
I didn't play this game until I grabbed an ST emulator a few years ago. I found it held a fair amount of M.P. humour, and was also quite challenging. Pretty original in places, and very pleasing for the fans who are gamers.

Not played the 16-bit versions... apparently they have extra cutscenes in the form of Arguments? No they don't. Yes they do. Stop this is all getting a bit silly. :D