He calls himself Dr. Mario because he has no last name. Nowhere else is he Mario Mario except for the movie. Plus, that's a stupid name! Could you imagine:
Mario Mario
Yoshi Yoshi
Toad Toad
Daisy Daisy
Wario Wario
Lakitu Lakitu
It's stupid and uncreative! Only the husband and wife team that directed the movie could be that stupid!
Mario Mario
Yoshi Yoshi
Toad Toad
Daisy Daisy
Wario Wario
Lakitu Lakitu
It's stupid and uncreative! Only the husband and wife team that directed the movie could be that stupid!