In Mario is Missing, he gets owned at his castle when Weegee owns him by pushing off Boozuh the castle for good, so he can save his brother Malleo. Then Boozuh got covered in snow.
Boozuh returned in Mario's Time Machine while Malleo saw a time machine and went to many random places. At the end of Mario's Time Machine, Boozuh was mauled to the dinosaurs.
Boozuh Stare: He can destroy the world with a stare, but he will never because he will also destroy the universe if he does it.