From the Super Mario Wiki
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The course features two Mini Toads. It is one of the three courses (aside from Room R-2 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.
Both minis start in the bottom left corner of the level. To reach the Goal Door at the top right, they have to be guided there with Pink Blocks. Several Coins are placed around the level and can be obtained in the same way.
Mini Mario Card
The Mini Mario Card is on a short platform above the Mini Toads. To reach and collect it, the minis must be brought there with Pink Blocks.