Floor 3+ Donkey Kong
Floor 3+ Donkey Kong (titled Floor 2+ Donkey Kong in the British English version) is the Plus Mode course of Magnet Mania in Mario vs. Donkey Kong: Minis March Again!. It is a more difficult version of Floor 3 Donkey Kong, the level's Normal Mode counterpart.
As in the Normal Mode version, Donkey Kong peeks out of several pipes at the top, and the player has to shoot Mini Marios into him to deal damage while avoiding fire-shooting Piranha Plants and their projectiles. However, compared to the Normal Mode version, more Piranha Plants may appear at once. Gray clocks also fall from the pipes, decreasing the timer with 30 seconds if collected.
To defeat Donkey Kong, the player must land him six hits.
Mini Mario Card
The Mini Mario Card appears after Donkey Kong is hit a second time, periodically popping out of one of the pipes. To collect it, the player has to shoot a Mini Mario into it.