The course features four Mini Peaches. It is one of the three courses (aside from Room R-4 and Room R-5) that need to be completed in order to unlock the option to replace the minis in most courses with Mini Peaches.
Two Mini Peaches start in a tunnel on the left, facing the entrance in a green Pipe. The other two Mini Peaches start a level lower, facing a gap with spikes at the bottom to the left. All minis must be brought with the help of Pink Blocks and a Rotate Pipe to the top of the level. They should then make a roundabout in the top portion by bouncing off a few Springs and walking onto some platforms and Pink Blocks, then arrive at the Pipe on the left and enter it from the left. By correctly adjusting the two Rotate Pipes in the Pipe system, the minis should be brought to the bottom right Pipe exit, which leaves them on a short platform. From here on, the player should use Pink Blocks to lead the Mini Peaches to the Goal Door to the right.
Mini Mario Card
The M-Token is located right behind the Goal Door in a tight passage. Once the minis exit out of the bottom right green Pipe, the player should guide them to the token with Pink Blocks.