For the question "Princess Mario rescues", please make it "Princess Mario rescues in most games" or something similar. He has also rescued Pauline and Daisy.
It wasn't misspelt, the animal is called tanuki but Mario 3 (where the powerup is from) spells it "Tanooki", this may have been a mistranslation but "Tanooki" has stuck as the official spelling of the powerup ever since.