Because "gomba" means "mushroom" in Hungarian
Perfect!Or he could be the damsel in distress for Wario to rescue because he has the treasure on him.
About Mario vs. Donkey Kong. The series has seen quite a few different genres--one game was a platformer, another was a Pipe Mania-esque game, and the rest were all Lemmings clones. I was thinking the next inspiration for the series should be "The Incredible Machine", where you make contraptions work using Mini toys and other components. And with that, the entire series would become a callback to classic action-puzzle PC games.