World 3 is the third world in Super Mario Run. It is the only free world, and completing it unlocks World 4.
Levels[]
Big Spiny Blitz[]
A desert level with many Big Spinies and a Lakitu.
Bullet Bill Barrage[]
A sky level with Bullet Bills and Missile Bills.
Shell Me the Way![]
A grassland level with many Koopa Troopas, Goombas and Brick Blocks.
Fire Bar Castle! Youch![]
A castle level containing Fire Bars and Podoboos, as well as the game's third boss battle, against a Fake Bowser.
Enemies introduced[]
[Edit] 
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|---|---|---|
| Characters | Playable | Luigi • Mario • Princess Peach • Princess Daisy • Toadette • Yoshi (Red Yoshi • Blue Yoshi • Purple Yoshi • Yellow Yoshi) |
| Other | Mii • Toad | |
| Bosses | Bosses | Boom Boom • Bowser |
| Enemies and obstacles | Enemies | Boo • Bullet Bill • Bull's-Eye Bill • Cannonball • Dry Bones • Fishing Boo • Fuzzy • Goomba • Goombrat • Green Koopa Troopa • Koopa Paratroopa • Lakitu • Ninji • Piranha Plant • Podoboo • Pokey • Poison Bubble • Red Koopa Troopa • River Piranha Plant • Rocky Wrench • Scaredy Rat • Scuttlebug • Spike • Spiny • Stretch • Swooper |
| Obstacles | Burner • Coin Rush Star • Fire Bar • Grinder • Muncher • Ring of Fire • Spiked Ball • Spike Roller | |
| Items and objects | Items | Black Coin • Blue Coin • Bonus Medal • Coin • Key • Pink Coin • Purple Coin • Red Coin • Super Mushroom • Starman |
| Objects | Axe • ! Switch • ? Block • Backflip Block • Bonus ? Block • Brick Block • Bubble • Cannon • Checkpoint Flag • Door • Goal Pole • Dotted-Line Block • Hidden Coin • Key Door • Lift • Long Jump Block • Pause Block • P Switch • Red Ring • Rally Ticket • | |
| Levels | World 1 | Up and Over • Wall-Kicking It Underground • Paratroopas in Mushroom Valley • Bowser's Castle Hangout |
| World 2 | Ghost-Door Deception • Sky-High Lifts and Leaps! • Treasure-Hoarding Swoops • Airship Cannons...Fire! | |
| World 3 | Big Spiny Blitz • Bullet Bill Barrage • Shell Me the Way! • Fire Bar Castle! Youch! | |
| World 4 | Cutting-Edge Spire • Slope to Success • Danger High and Low • Firing the Airship's Burners | |
| World 5 | Lakitu's Revenge • Pokey Vaulting • Boohind Lock and Key • Rings of Fire! | |
| World 6 | Land of Spikes • Switch Ghost House • Throwing It All Overboard • Bowser's Bob-ombing Run | |
| World Star* | Scuttlebug Forest • Airship Armada • Fishing Boo Taunts You • Desert Fuzz • Dark and Stormy • Wild Slopes • Scaredy Rat Race • Spike Bar Jungle • Airship Plunder | |
| Special courses | Chase the Snaking Coins • Piranha Plant Field • Make the Cut! • Red Block Run* | |
| Secret courses* | Secret Course 01 • Secret Course 02 • Secret Course 03 • Secret Course 04 • Secret Course 05 • Secret Course 06 • Secret Course 07 • Secret Course 08 • Secret Course 09 • Secret Course 10 • Secret Course 11 • Secret Course 12 • Secret Course 13 • Secret Course 14 • Secret Course 15 • Secret Course 16 • Secret Course 17 • Secret Course 18 • Secret Course 19 • Secret Course 20 • Secret Course 21 • Secret Course 22 • Secret Course 23 • Secret Course 24 • Secret Course 25 • Secret Course 26 • Secret Course 27 | |
| Game mechanics | Game mechanics | Point • Time limit |
| Miscellaneous | Miscellaneous | Gallery • Kingdom Builder • Shop |
| Items marked with an asterisk (*) were introduced in version 3.0.4 or later. | ||