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The course features four Mini Toads. It is one of the three courses (aside from Room R-1 and Room R-3) that need to be completed in order to unlock the option to replace the minis in most courses with Mini Toads.
The course has a tall layout. One pair of minis starts in the top left, while the other pair starts at the top right. All of them face a gap in the middle that leads straight down. The player has to use Pink Blocks to help them descend to the Goal Door at the bottom left while avoiding the spikes along the way. Many Coins are scattered on the side platforms and along the walls, and can be collected by bringing the minis to them with Pink Blocks.
Mini Mario Card
The Mini Mario Card is in an alcove right above the Goal Door, on the left. In order to reach and collect it, the minis must be brought there with Pink Blocks.