Super Mario 3D World Hidden Luigis: World 4
World 4-1: Ant Trooper Hill
An 8-bit Luigi is crouching behind a platform with the Sprixie holding binoculars. You need to angle the camera just right to spot him.
World 4-2: Piranha Creeper Creek
After you complete the level, there's a small Luigi crouching in the screen's bottom right corner.
World 4-3: Beep Block Skyway
Several 8-bit Luigis will crawl across the electronic screens in the level.
World 4-4: Big Bounce Byway
Ground pound the bouncy mushroom platforms at the end of the level just before the warp block. You'll see an 8-bit Luigi in the cloud that pops out.
World 4-5: Spike's Lost City
An 8-bit Luigi is hiding in the vines behind the Galoombas at the start of the level.
World 4- Boss: Lava Rock Lair
At the top of the bridge used to access the first Green Star.
World Map
Take the Warp Pipe up to the upper area and then adjust the camera behind a rock after the camera angle shifts.
