Sonic the Hedgehog

Sonic the Hedgehog was a video game.

In 1989, Alistair Gordon Lethbridge-Stewart was aware that the titular character was a blue hedgehog. (PROSE: Business Unusual)

Mel Joseph was playing the game on his computer, completing the Scrap Brain Zone. (PROSE: Conundrum)

Mickey Smith had a copy of the game on either his Playstation or Xbox, along with Grand Theft Auto and Gran Turismo. (PROSE: Winner Takes All)