Alternate universe where The Super Mario Bros. live-action movie was so popular that "Mario Mario" became canon and every other game franchise had zero choice but to make the last name of their characters their franchise just for their characters to be recognized in the public consciousness.
Sonic Sonic.
Phoenix Aceattorney.
Joker Personafive.
Link Zelda.
Clive Finalfantasy.
Doomguy Doom.
Ichiban Likeadragon.
Ryu from Streets Streetfighter.