Locked Level

Locked Levels are levels that require a certain amount of collectibles to access on the world map. Debuting in Super Mario 3D Land, they're represented by a large black ? Block. Star Medals are required to unlock these levels. When a level is unlocked, a ? Block gets removed and the preview of the stage appears in its place. At least one Locked Level is present in every world of the game. Locked Levels return in Super Mario 3D World and Super Mario 3D World + Bowser's Fury. They are represented by a Bowser Statue, and require Green Stars to be unlocked. After a level gets unlocked, a Bowser Statue breaks. Collectibles don't get removed after a level is unlocked.

Levels

The following is a list of Locked Levels and their unlock requirements:

Super Mario 3D Land

Level	Star Medals
World 1-4	3
World 3-5	15
World 4-3	30
World 5-3	40
World 5-Castle	50
World 6-5	60
World 7-3	70
World 8-3	80
World 8-Bowser: Part 1	90
World 8-Bowser: Part 2	100
Special 1-Castle	110
Special 2-Airship	120
Special 3-Airship	140
Special 4-Airship	160
Special 5-Castle	180
Special 6-Airship	200
Special 7-Castle	220
Special 8-1	230
Special 8-2	240
Special 8-3	250
Special 8-4	260
Special 8-5	270
Special 8-Bowser	290

Super Mario 3D World

Level	Name	Green Stars
World 1-Castle	Bowser's Highway Showdown	10
World 2-2	Puffprod Peaks	15
World 3-2	Chain-Link Charge	30
World 4-Castle	Lava Rock Lair	50
World 5-3	Backstreet Bustle	80
World 6-3	Hands-On Hall	100
World Castle-Castle	Bowser's Lava Lake Keep	130
World Bowser-Castle	The Great Tower of Bowser Land	170
World Star-9	Cosmic Cannon Cluster	210
World Mushroom-7	Broken Blue Bully Belt	240