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The player needs to activate the Mini-Mario and then climb up the ladder. By pressing the blue Color Switch and then the red Color Switch, a Bin will fall onto the lower platforms, creating a way for the Mini-Mario to get up. Once the Mini-Mario is up on the same platform as the player, they have to press a blue Color Switch and lead the Mini-Mario into the next area by grabbing a rope, but not jumping into the next area themselves. With the Mini-Mario stuck, the player has to return to the Bin and move it to the left, then press the red Color Switch. The player has to carry the Bin up the red platforms and toss it onto the upper platform, then hit the blue Color Switch and carry the Bin into the next area.
In the next area, the player has to toss the Bin onto an upper platform and get onto it themselves using the rope or a Handstand Double Jump on the conveyor below. These next steps need to happen in quick succession: The player has to toss the Bin up onto the conveyor belt above while standing on the edge of the platform they are on, fall onto the Springboard below and land on the Direction Switch, then quickly run over to the right to press a red Color Switch. If done correctly, the Bin will fall onto the red blocks and the Mini-Mario will continue onward to the locked door. For the player to get to the locked door, they need to press the blue Color Switch to get out of the enclosed area, use the Springboard to reach the first conveyor, and perform two Handstand Double Jumps to reach the highest conveyor belt. After jumping across a gap, the player and the Mini-Mario can unlock the door.