Not to be confused with Bowser's Shell.

Description[]

A Spiky Shell is a Skill Item that can raise the Skill levels of certain teammates, including all Magikoopa variations and evolved forms, Boom Boom, the Koopalings and their evolved forms, Bowser Jr., all three forms of Bowser, and Rock Luigi. A Spiky Shell can only raise a Skill level up to level 4, but it has an upgraded variation, Grand Spiky Shell, that can further increase any of the aforementioned teammates' Skill level.

A Spiky Shell can be obtained either from opening a ? Block at random or as a reward from the Lucky ? Blocks minigame.

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Characters	Characters	Mario • Luigi • Toad • Princess Peach • Yoshi • Bowser • Bowser Jr. • Kamek • Tamadra • Rosalina
	Leaders	Bee Luigi • Bee Mario • Boo Luigi • Boo Mario • Boomerang Luigi • Boomerang Mario • Cat Luigi • Cat Mario • Double Luigi • Double Mario • Fire Luigi • Fire Mario • Flying Squirrel Luigi • Flying Squirrel Mario • Fox Luigi • Gold Luigi • Gold Mario • Ice Luigi • Ice Mario • Metal Luigi • Metal Mario • Penguin Luigi • Penguin Mario • Raccoon Mario • Rock Luigi • Rock Mario • Small Luigi • Small Mario • Statue Luigi • Statue Mario • Super Luigi • Super Mario
	Helpers	Blue Toad • Bowser • Bowser the Koopa King • Dry Bowser • Green Toad • Green Winged Yoshi • Green Yoshi • Light-blue Winged Yoshi • Light-blue Yoshi • Peach • Purple Toad • Purple Winged Yoshi • Purple Yoshi • Red Toad • Red Winged Yoshi • Red Yoshi • Rosalina • Super Peach • Super Rosalina • Yellow Toad • Yellow Winged Yoshi • Yellow Yoshi
Worlds	World 1	World 1-1 • World 1-2 • World 1-3 • World 1-4 • World 1-5 • World 1- • World 1-6 • World 1- • World 1-
	World 2	World 2-1 • World 2-2 • World 2-3 • World 2-4 • World 2- • World 2-5 • World 2-6 • World 2- • World 2-
	World 3	World 3-1 • World 3-2 • World 3- • World 3-3 • World 3- • World 3-4 • World 3-5 • World 3-6 • World 3- • World 3-
	World 4	World 4-1 • World 4-2 • World 4-3 • World 4- • World 4-4 • World 4-5 • World 4-6 • World 4- • World 4-7 • World 4-8 • World 4- • World 4-
	World 5	World 5-1 • World 5-2 • World 5-3 • World 5- • World 5-4 • World 5-5 • World 5- • World 5-6 • World 5-7 • World 5-8 • World 5- • World 5-
	World 6	World 6-1 • World 6-2 • World 6-3 • World 6- • World 6-4 • World 6-5 • World 6-6 • World 6- • World 6- • World 6-7 • World 6-8 • World 6-9 • World 6- • World 6-
	World 7	World 7-1 • World 7-2 • World 7-3 • World 7- • World 7-4 • World 7-5 • World 7-6 • World 7- • World 7-7 • World 7-8 • World 7-9 • World 7- • World 7-10 • World 7-11 • World 7- • World 7-
	World 8	World 8-1 • World 8-2 • World 8- • World 8-3 • World 8-4 • World 8-5 • World 8- • World 8-6 • World 8-7 • World 8-8 • World 8- • World 8-9 • World 8-10 • World 8-11 • World 8- • World 8- • World 8-12 • World 8-
	★World 1	★World 1-1 • ★World 1-2 • ★World 1-3 • ★World 1-4 • ★World 1-5 • ★World 1- • ★World 1-6 • ★World 1- • ★World 1-
	★World 2	World 2-1 • ★World 2-2 • ★World 2-3 • ★World 2-4 • ★World 2- • ★World 2-5 • ★World 2-6 • ★World 2- • ★World 2-
	★World 3	★World 3-1 • ★World 3-2 • ★World 3- • World 3-3 • ★World 3- • World 3-4 • World 3-5 • World 3-6 • ★World 3- • ★World 3-
	★World 4	★World 4-1 • ★World 4-2 • ★World 4-3 • ★World 4- • ★World 4-4 • ★World 4-5 • ★World 4-6 • ★World 4- • Special World 4-7 • ★World 4-8 • ★World 4- • ★World 4-
	★World 5	★World 5-1 • ★World 5-2 • ★World 5-3 • ★World 5- • ★World 5-4 • ★World 5-5 • ★World 5- • ★World 5-6 • ★World 5-7 • ★World 5-8 • ★World 5- • ★World 5-
	★World 6	★World 6-1 • ★World 6-2 • ★World 6-3 • ★World 6- • ★World 6-4 • ★World 6-5 • ★World 6-6 • ★World 6- • ★World 6- • ★World 6-7 • ★World 6-8 • ★World 6-9 • ★World 6- • ★World 6-
	★World 7	★World 7-1 • ★World 7-2 • ★World 7-3 • ★World 7- • ★World 7-4 • ★World 7-5 • ★World 7-6 • ★World 7- • ★World 7-7 • ★World 7-8 • ★World 7-9 • ★World 7- • ★World 7-10 • ★World 7-11 • ★World 7- • ★World 7-
	★World 8	★World 8-1 • ★World 8-2 • ★World 8- • ★World 8-3 • ★World 8-4 • ★World 8-5 • ★World 8- • ★World 8-6 • ★World 8-7 • ★World 8-8 • World 8- • ★World 8-9 • ★World 8-10 • ★World 8-11 • ★World 8- • ★World 8- • ★World 8-12 • ★World 8-
	Demo	Intro • Expert
Bosses	Major bosses	Larry Koopa • Lemmy Koopa • Morton Koopa Jr. • Wendy O. Koopa • Iggy Koopa • Roy Koopa • Ludwig von Koopa • Bowser Jr. • Bowser • Dry Bowser
	Map bosses	2-Goomba Tower • 3-Goomba Tower • Big Yellow Koopa Paratroopa • Blooper & Cheep Cheep • Blooper & Cheep Cheeps • Blooper Nanny & Babies • Bob-omb & Lakitu • Boo Crew • Boo Trio • Boom Boom • Bullet Bill & Goomba • Bullet Bill & Goombas • Chain Chomp & Flame Chomp • Double Lakitu • Flutter & Flame Chomp • Petey Piranha • Sledge Bro • Spiny Egg & Lakitu • Whomp & Boos • Wiggler & Flame Chomp
Enemies	Enemies	Baby Blooper • Banzai Bill • Big Bone Piranha Plant • Big Bony Beetle • Big Whomp • Blooper • Blue Magikoopa • Bob-omb • Bone Piranha Plant • Bony Beetle • Boo • Boo Crew • Boomerang Bro • Bullet Bill • Buzzy Beetle • Chain Chomp • Cheep Cheep • Coin Coffer • Colossal Koopa Paratroopa • Dry Bones • Fire Bro • Fire Piranha Plant • Flame Chomp • Gold Goomba • Gold Goomba Tower • Goomba • Goomba Tower • Green Magikoopa • Hammer Bro • Heavy Parabeetle • Huge Paragoomba • Ice Bro • King Bill • King Coin Coffer • Koopa Paratroopa • Koopa Troopa • Lakitu • Mega Cheep Cheep • Para-Beetle • Paragoomba • Piranha Plant • Purple Magikoopa • Red Magikoopa • Sledge Bro • Spiny • Super Thwomp • Thwimp • Thwomp • Whomp • Wiggler • Yellow Magikoopa
Items	Transformation	Boo Coin • Boo Mushroom • Cheep Cheep Coin • Fire Flower • Flame Chomp Coin • Goomba Coin • Ice Flower • Lakitu Coin • P-Wing • Poison Mushroom • Super Leaf • Super Mushroom
	Skill	Comet Medal • Grand Comet Medal • Fruit • Rare Fruit • Gold Mushroom • Grand Gold Mushroom • Green Star Coin • Grand Green Star Coin • Spiky Shell • Grand Spiky Shell • Star Coin • Grand Star Coin • Super Star • Grand Super Star
	Other	1-Up Mushroom • ? Block • Baddie Block • Coin • Orb • Star Gem
Miscellaneous	Status effects	Bind • Blind • DEF-Up • DEF-Down • Poison • POW-Up
	Other	Gallery • Lucky ? Blocks