Console: Sega Mega Drive/Genesis
One of the most inspired platform games ever created, Sonic the Hedgehog is just full of so many original “how the heck did they come up with that idea” moments its incredible, a high speed rolling hedgehog? roller coaster loops? pinball bumpers and flippers? rotating bonus level? the health system? people really do take a lot of the stuff in this game for granted these days, its such a shame that later games in the series became so lazy and formulaic when the first was as admirably original as this. On the commercial side of things this was the big one, the game which cemented the MD as a true force to be reckoned with.