The real question is this.
If other Nintendo characters became Pokemon, what would their typings be?
Mario would be Normal/Fire since he's an Everyman and is associated with Fire.
Luigi would be Ghost/Fire to reference both Luigi's Mansion and always being in Mario's shadow.
Peach would be Psychic to reference her telekinetic powers and more graceful nature.
Bowser is Dragon/Dark with a Steelworker-like ability that boosts Fire moves.
Yoshi is Dragon/Fairy.
Wario is Poison/Fighting.
Rosalina is Ice/Psychic.
Bowser Jr. is Steel/Dragon.
Donkey Kong is Normal/Fighting.
Diddy Kong is Fighting/Flying.
Link is Fairy/Steel.
Zelda is Psychic/Fairy.
Ganondorf is Dark/Fighting.
Sheik is Fighting.
Toon Link is Fairy/Steel.
Samus is Steel/Electric.
Zero Suit Samus is Normal/Electric.
Pit is Flying.
Palutena is Psychic/Flying.
R.O.B. is Steel.
Ice Climbers are Normal/Ice.
Mr. Game and Watch is Electric.
Duck Hunt is Normal/Flying.
Ness is Psychic.
Lucas is Psychic.
Kirby is Fairy/Flying.
Meta Knight is Dark/Flying.
King Dedede is Normal/Flying.
Marth is Normal/Steel.
Ike is Ground/Steel.
Robin is Electric/Psychic.
Lucina is Normal/Steel.
Roy is Fire/Steel.
Corrin is Water/Dragon.
Fox is Fighting/Flying.
Falco is Flying.
Wolf is Dark/Fighting.
Pokémon are self-explanatory.
Olimar is Normal/Grass.
Little Mac is Fighting.
Villager is Normal.
Wii Fit Trainer is Fighting.
Shulk is Normal/Psychic.
Miis are Normal.
Captain Falcon is Fire/Fighting.