These are all of the bosses that appear in the game Super Mario Odyssey. 10 Hardest Bosses In Super Mario Odyssey (& How To Beat Them) Super Mario Odyssey features an array of different bosses. Defeat the Broodals and an assortment of other big baddies with these battle tips and tricks for every boss fight in Super Mario Odyssey. Here are the 10 most difficult (& how to beat them).