- Not to be confused with Spiky Shell or Blue Shell.
Spiny Shell is the Spiny variety of Koopa Shells worn by Spinies. The shell, however, cannot be picked up or thrown, as Mario and Luigi are unable to jump on it, and throwing another shell at the Spiny defeats it. However, in the Game Boy Advance version of Super Mario Bros. 3 and also in New Super Mario Bros. Wii, it is possible to carry an upside-down Spiny Shell.
They are not to be confused with Blue Shells, as the sticker (a Blue Spiny Shell with wings) in Super Smash Bros. Brawl is called a Blue Spiny Shell, and the Mario Kart series item is also called a Blue Spiny Shell.
In Super Mario Strikers and Mario Strikers Charged, Red Spiny Shells act as items. When fired, they will shoot towards the other players, acting very similar to the Green Shells. However, instead of just hitting one player, then disintegrating, the Spiny Shells will keep going. This can be compared with the Giant Green Shells. They continue to bounce around the stage until, at long last, they wear out, and get destroyed on their own. The more effective counterpart of the Spiny Shell, is the Giant Spiny Shell. Spiny Shells usually come in groups of three.
In Super Mario Maker, Mario is able to wear Spiny Shells and Buzzy Beetle Shells on his head like a helmet. It protects him from damage from above, and is useful against Thwomps.
In Paper Mario: Color Splash, there are pits in Kiwano Temple that are filled with spikes that resemble Spiny Shells.
 
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| Characters | Protagonists | Mario • Luigi |
| Other characters | Kings • Princess Toadstool | |
| Bosses | Boom Boom • Bowser • Koopalings (Larry Koopa • Iggy Koopa • Lemmy Koopa • Ludwig von Koopa • Morton Koopa • Roy Koopa • Wendy Koopa) | |
| Enemies | Enemies | Angry Sun • Baby Cheep • Big Bertha • Blooper • Baby Blooper • Blooper Nanny • Bob-omb • Boo Buddy • Boomerang Bro • Boss Bass • Bullet Bill • Buster Beetle • Buzzy Beetle • Chain Chomp • Cheep-Cheep • Colossal Koopa Paratroopa • Dry Bones • Fiery Walking Piranha • Fire Bro • Fire Chomp • Fire Snake • Gargantuan Koopa Troopa • Goomba • Grand Goomba • Hammer Bro • Hanging Piranha Plant • Hot Foot • Jelectro • Koopa Paratroopa • Koopa Troopa • Kuribo's Goomba • Lakitu • Lava Lotus • Micro-Goomba • Missile Bill • Muncher • Nipper Plant • Para-Beetle • Para-Goomba • Pile Driver Micro-Goomba • Piranha Plant • Piranhacus Giganticus • Podoboo • Ptooie • Rocky Wrench • Scattering Blooper • Sledge Brother • Spike • Spiny Cheep-Cheep • Spiny • Spiny Egg • Stretch • Thwomp • Venus Fire Trap |
| Items | Power-ups | Fire Flower • Frog Suit • Hammer Suit • Kuribo Shoe • Mushroom Coin* • Starman • Super Mushroom • Super Leaf • Tanooki Suit |
| Map | Anchor • Hammer • Lakitu's Cloud • Music Box • P-Wing • Warp Whistle | |
| Level | 1-Up Mushroom • Coin • Magic Ball • Magic Wand • Silver Coin | |
| Worlds | World 1 | World 1-1 • World 1-2 • World 1-3 • World 1-4 • World 1- • World 1-5 • World 1-6 • World 1-
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| World 2 | World 2-1 • World 2-2 • World 2- • World 2-3 • World 2- • World 2-4 • World 2-5 • World 2- • World 2-
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| World 3 | World 3-1 • World 3-2 • World 3-3 • World 3- • World 3-4 • World 3-5 • World 3-6 • World 3-7 • World 3- • World 3-8 • World 3-9 • World 3-
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| 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-
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| World 5 | World 5-1 • World 5-2 • World 5-3 • World 5- • World 5- • World 5-4 • World 5-5 • World 5-6 • World 5-7 • World 5- • World 5-8 • World 5-9 • World 5-
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| World 6 | World 6-1 • World 6-2 • World 6-3 • World 6- • World 6-4 • World 6-5 • World 6-6 • World 6-7 • World 6- • World 6-8 • World 6-9 • World 6-10 • World 6- • World 6-
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| World 7 | World 7-1 • World 7-2 • World 7-3 • World 7-4 • World 7-5 • World 7- • World 7- • World 7-6 • World 7-7 • World 7-8 • World 7-9 • World 7- • World 7- • World 7-
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| World 8 | World 8- • World 8- • World 8- • World 8- • World 8-1 • World 8-2 • World 8- • World 8- • World 8-
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| Other locations | Other locations | Enemy Course • Panel (N-Mark Spade Panel · Spade Panel · Start Panel) • Toad House • Treasure Ship |
| Forms | Forms | Small Mario • Super Mario • Fire Mario • Raccoon Mario • Frog Mario • Tanooki Mario (Statue Mario) • Hammer Mario • Invincible Mario |
| Objects | Regular | ? Block • Big Block • Bolt Lift • Brick Block • Buzzy Beetle Shell • Card • Cloud Block • Cloud Lift • Coin Block • Coral • Directional Lift • Donut Lift • Empty Block • Flimsy Lift • Frozen Coin • Giant Green Shell • Giant Red Shell • Goal • Green Shell • Hidden Block • Ice Block • Jump Block • Lift • Magic Ball • Magic Door • Magic Note Block • Mega ? Block • P Warp Door • Quicksand • Red Shell • Rotary Lift • Semisolid Platform • Spiny Shell • Switch Block • Tank • Track • Treasure box • Vine • Warp Door • Warp Pipe • Wood Block |
| Obstacles | Bowser Statue • Candy Ring • Cannon • Cannonball • Giant Cannonball • Lava • Pit • Rocket Engine • Roto-Disc • Spike • Tornado • Turtle Cannon | |
| World-e-exclusive | Levels | 01: Classic World 1-1 • 02: Classic World 1-2 • 03: Classic World 1-3 • 04: Classic World 1-4 • 05: Classic World 2-2 • 01: Wild Ride in the Sky • 02: Slidin' the Slopes • 03: Vegetable Volley • 04: Doors o' Plenty • 05: Bombarded by Bob-ombs • 06: Magical Note Blocks • 07: The ol' Switcheroo • 08: Piped Full of Plants • 09: Swinging Bars of Doom • 10: Para Beetle Challenge • 11: A Musical Trek • 12: Armored Airship • 13: Ice Dungeon • 14: A Sky-High Adventure • 15: Sea to Sky • 16: It's a Shoe-In • 17: Slip Slidin' Away • 18: Ice Cubed • 19: Puzzling Pipe Maze • 20: A Towering Tour • 21: Castle Dash • 22: Rich with Ropes • 23: Vexing Doors • 24: Caped Escape • 25: Ground Work • 26: An Aqueous Adventure • 27: Bowser's Last Stand • 28: Koopaling Confusion • 29: Bowser's Airship 1 • 30: Bowser's Airship 2 • Airship's Revenge • No Time to Dawdle • Treacherous Halls |
| Enemies and obstacles | Amazing Flyin' Hammer Brother • Big Boo • Bony Beetle • Bowser Statue (Super Mario World) • Bumpty • Chargin' Chuck • Fake Bowser (boss) • Falling spike • Fire-Bar • Flurry • Goomba (Super Mario World) • Hoopster • Hothead • Jumping Piranha Plant • Lil Sparky • Magikoopa • Monty Mole • Para-Goomba (Super Mario World) • Porcupo • Rip Van Fish • Spike Top • Thwimp • Wiggler | |
| Items | 3-Up Moon • Advance Coin • Boomerang • Cape Feather • e-Coin • Poisonous Mushroom | |
| Objects | ! Switch • Axe • Balance Lift • Bubble • Control Coin • Dotted-Line Block • Flagpole • Flipper • Giant Gate • Grass • Gray Brick Block • Key • Key Door • Power Meter Block • Rotating Block • Roulette Block • Seesaw • Snake Block • Soft sand • Springboard • Stretch Block • Triangular Block • Vanishing Block • Vegetable | |
| Switch Cards | 1UP Kinoko ga 3UP Moon ni kawaru! • Blue Green Switch • Luigi Power Up! • Orange Switch • Sugu ni mantan! Power Meter!! • Teki Power Up! Tokuten x2!! • Timer yukkuri! | |
| Minigames | Blue Mushroom House • Orange Mushroom House • Red Mushroom House | |
| Other | Caped Mario • e-Coin Castle | |
| Terms | Terms | Completion • Game Over • Extra life • P-Meter • Time limit • Unwinnable state |
| Other | Other | Gallery (Super Mario Advance 4: Super Mario Bros. 3) • Matching Game |
