|Fighter Group||The Shellshockers|
Shellshock has a personality similar to that of King K., and is shown to have some kind traits. Once Mario climbs to rank six in the' Glitz Pit, one of his adoring fans leaves him a cake which restores all Heart Points, FP, and Star Power to the maximum. Because of Shellshock's hunger, there is no saving it for another match. If Mario does not eat the cake as soon as it is given to him, he will discover it has already been eaten by Shellshock due to him being fond of sweets as he also mocks Mario saying he liked it. If Mario wisely refuses to eat the second cake given to Mario, Shellshock will eat it as well. After Mario and his partner return from their battle, they will find Shellshock lying on the floor in a semi-paralyzed state, moaning and groaning in utter anguish, due to cake poisoning and states that he will never eat another cake again.
Later, in the cutscene before the fight with the Shadow Queen, Shellshock can be seen cheering Mario on, along with some of the other Glitz Pit fighters.
| Glitz Pit Fighters|
|Champion:||The Great Gonzales|
|Former Champions:||Rawk Hawk · Prince Mush|
|Major League Characters:||The Koopinator · Hamma Jamma · Bamma · Flare · Craw-Daddy · Shellshock · Spiky Joe|
|Major League Teams:||Chomp Country · The Fuzz · Magikoopa Masters · Shellshockers · Poker Faces · Tiny Spinies|
|Minor League Characters:||Cleftor · Bandy Andy · Master Crash · King K. · Sir Swoop|
|Minor League Teams:||Armored Harriers · Bob-omb Squad · Punk Rocks · Hand-It-Overs · Spike Storm · Dead Bones · Pokey Triplets · KP Koopas · Goomba Bros. · Mind-Bogglers|
|Minor League Replacement Teams:||Wings of Night · Destructors|