New Super Mario Bros. U - Secret Boss Battles

New Super Mario Bros. U - Secret Boss Battles This video features secret boss battles in New Super Mario Bros. U. 0:00 Secret Final Boss 1 4:32 Secret Final Boss 2 Credits: Small Super Mario Bros. U 2 by:    / @themrbengtsson   Dry Bowser by:    / @willymaker   Subscribe for more Nintendo videos!