The Bowser Key is an item in Super Mario 64, Super Mario 64 DS, and New Super Mario Bros.
Description
These items are found when Mario defeats Bowser in the boss levels. When Bowser is defeated, he morphs into a Bowser Key and Mario can use it to unlock doors. The key is only for the door it is compatible with. In the DS remake, Yoshi (wearing a cap), Mario, Luigi, and Wario can get the keys defeating bosses and Bowser. The keys are unlocked with 8 stars (12 in the DS remake), and 30 stars. In the DS remake, the player uses Bowser Keys to unlock Mario, Luigi and Wario's rooms. In New Super Mario Bros., when Mario or Luigi defeats a boss, they earn a Bowser Key, which unlocks new worlds. In the final boss instead of getting a key you get a star which when touched will cause mario to get a wing cap and end the game.
 
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| Characters | Playable Characters | Yoshi • Mario • Luigi • Wario |
| Supporting Characters | Toad • Bob-omb Buddy • Princess Peach • Rabbits • Ukiki | |
| Bosses | King Bob-omb • Whomp King • Goomboss • Bowser#1 • Big Boo • Big Mr. I • King Boo • Big Bully • Eyerok • Bowser#2 • Chill Bully • Chief Chilly • Wiggler • Bowser#3 | |
| Enemies | Enemies | Goomba • Bob-omb • Chain Chomp • Big Steely • Koopa Troopa • Piranha Plant • Thwomp • Whomp • Unagi the Eel • Treasure chest • Cheep Cheep • Bubba • Mr. Blizzard • Amp • Boo • Mr. I • Bookend • Killer Chair • Mad Piano • Coffin • Scuttlebug • Flamethrower • Monty Mole • Snufit • Swooper • Boulder • Bully • Podoboo • Klepto • Tox Box • Grindel • Spindel • Pokey • Sushi • Manta Ray • Bub • Fire Chomp • Fire Spitter • Spindrift • Skeeter • Heave Ho • Chuckya • Fly Guy • Grand Goomba • Micro-Goomba • Venus Fire Trap • Big Venus Fire Trap |
| Courses | First Floor | Bob-omb Battlefield • Whomp's Fortress • Jolly Roger Bay • Cool, Cool Mountain • Goomboss Battle • Bowser in the Dark World |
| Courtyard | Big Boo's Haunt • Big Boo Battle | |
| Basement | Hazy Maze Cave • Lethal Lava Land • Shifting Sand Land • Dire, Dire Docks • Bowser in the Fire Sea | |
| Second Floor | Chief Chilly Challenge • Snowman's Land • Wet-Dry World • Tall, Tall Mountain • Tiny-Huge Island | |
| Third Floor | Tick Tock Clock • Rainbow Ride • Bowser in the Sky | |
| Stars | Bob-omb Battlefield | Big Bob-omb on the the Summit • Footrace with Koopa the Quick • Shoot to the Island in the Sky (N64) • 5 Silver Stars (DS) • Big Bob-omb's Revenge (DS) • Find the 8 Red Coins • Mario Wings to the Sky • Behind Chain Chomp's Gate (N64)/Behind Chain-Chomp's Gate (DS) |
| Whomp's Fortress | Chip Off Whomp's Block • To The Top Of The Fortress • Shoot into the Wild Blue • Red Coins on the Floating Isle • Fall onto the Caged Island • Blast Away the Wall • Switch Star of the Fortress (DS) | |
| Jolly Roger Bay | Plunder in the Sunken Ship • Can the Eel Come Out to Play? • Treasure in the the Ocean Cave • Red Coins on the Ship Afloat • Blast to the Stone Pillar • Through the Jet Stream • Switch Star of the Bay (DS) | |
| Cool, Cool Mountain | Slip Slidin' Away • Lil' Penguin Lost • Big Penguin Race • Frosty Slide for 8 Red Coins • Snowman's Lost His Head • Wall Kicks Will Work (N64)/Mario's Super Wall Kick (DS) • Switch Star of Cool, Cool Mountain (DS) | |
| Big Boo's Haunt | Go on a Ghost Hunt • Ride Big Boo's Merry Go Round • Secret of the Haunted Books • Seek the 8 Red Coins • Big Boo's Balcony • Eye to Eye in the Secret Room • Switch Star of the Basement | |
| Hazy Maze Cave | Swimming Beast in the Cavern • Elevate for 8 Red Coins • Metal-Head Mario Can Move! (N64)/Metal-Head Wario Can Move (DS) • Navigating the Toxic Maze • A-Maze-Ing Emergency Exit • Watch for Rolling Rocks • Underground Switch Star | |
| Lethal Lava Land | Boil the Big Bully • Bully the Bullies • 8-Coin Puzzle with 15 Pieces • Red-Hot Log Rolling • Hot-Foot-it into the Volcano • Elevator Tour In the Volcano (N64)/Inside the Volcano • Flaming Silver Stars (DS) | |
| Shifting Sand Land | In the Talons of the Big Bird • Shining Atop the Pyramid • Inside the Ancient Pyramid • Stand Tall On the Four Pillars • Free Flying For 8 Red Coins (5th Star, N64) (7th Star, DS) • Tox Box Switch Star (DS) • Pyramid Puzzle | |
| Dire, Dire Docks | Board Bowser's Sub • Chests in the Current • Pole-Jumping for Red Coins • Through the Jet Stream • The Manta Ray's Reward (5th Star, N64) (7th Star, DS) • Koopa Surfin' Switch Star (DS) • Collect the Caps... (N64)/Inside the Cage (DS) | |
| Snowman's Land | Snowman's Big Head • Chill with the Bully • In the Deep Freeze (N64) • Yoshi's Ice Sculpture (DS) • Whirl from the Freezing Pond • Shell Shreddin' for Red Coins (N64) • Snowman's Silver Star (DS) • Into the Igloo • Red Coins in the House (DS) | |
| Wet-Dry World | Shocking Arrow Lifts! • Top o' the Town • Secrets in the Shallows and Sky (N64)/5 Secrets in the Shallows and Sky (DS) • Express Elevator--Hurry Up! • Go to Town for Red Coins (N64)/Go to Town for the Red Coins (DS) • Quick Race Through Downtown! • Soaked Silver Stars (DS) | |
| Tall, Tall Mountain | Scale the Mountain • Mystery of the Monkey Cage • Scary 'Shrooms, Red Coins • Mysterious Mountainside • Breathtaking View from Bridge (Star 5, N64)/Breathtaking View from the Bridge (Star 7, DS) • Blast to the Lonely Mushroom (Star 6, N64) (Star 5, DS) • 5 Secrets of the Mountain | |
| Tiny-Huge Island | Pluck the Piranha Flower • The Tip Top of the Huge Island • Rematch with Koopa the Quick • Five Itty Bitty Secrets (N64) • Klepto the Condor • Wiggler's Red Coins • Make Wiggler Squirm • Switch Star of the Island (DS) | |
| Tick Tock Clock | Roll into the Cage (N64) • Luigi in the Cage (DS) • The Pit and the Pendulums (N64) • The Pendulum Switch Star (DS) • Get a Hand • Stomp on the Thwomp •Timed Jumps on Moving Bars • Stop Time for Red Coins • Tick Tock Silver Stars | |
| Rainbow Ride | Cruiser Crossing the Rainbow • The Big House in the Sky • Coins Amassed in a Maze • Swingin' in the Breeze • Tricky Triangles! • Somewhere over the Rainbow • Switch Star of the Manor | |
| Items and Objects | Items | Power Flower • Vanish Cap • Metal Cap • Key • Power Star • Koopa Shell • Silver Star • Wing Cap |
| Objects | Mario's Cap • Luigi Cap • Wario Cap • ! Block • Star Switch • Red Switch • Cannon • Coin • Red Coin • Blue Coin • Bowser Key | |
