Room 3-5 (Mario vs. Donkey Kong: Minis March Again!)
From the Super Mario Wiki
Room 3-5 (titled Room 2-5 in the British English version) is the fifth course of Magnet Mania in Mario vs. Donkey Kong: Minis March Again!. It introduces the Thwomp enemy, which falls down after it detects a mini nearby.
The course features three mini toys.
Two minis start in the bottom left, behind two columns of Pink Blocks on a grid, while the third mini starts further ahead. A Thwomp falls and rises between these Pink Blocks. The player must collect the Pink Blocks and use them to guide the minis to the top platforms and reach the Goal Door in the top left. The Thwomp can be kept away from the minis by blocking it with Pink Blocks.
Mini Mario Card