The 'ol Switcheroo is one of the World-e levels in Super Mario Advance 4: Super Mario Bros. 3, in both the Japanese and North American versions. For the Wii U Virtual Console and Nintendo Switch Online ports, it is included in the base game in all regional releases.
Layout[]
The level takes place in both a desert area with some waterfalls and inside of a castle-like environment underground area. In the latter environment, Mario or Luigi has to activate a P Switch to cross a wide lava pit, since all the coins above the lava turn into Brick Blocks.
 
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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 |