Successfully complete the indicated task to unlock the corresponding Construction Kit for creating custom levels:

Jungle Hijinks: Defeat Donkey Kong at Jungle Hijinks
Lava Dome: Defeat Donkey Kong at Lava Dome
Magnet Mania: Defeat Donkey Kong at Magnet Mania
Mushroom Mayhem: Defeat Donkey Kong at Mushroom Mayhem
Pipe Works: Defeat Donkey Kong at Pipe Works
Spooky Attic: Defeat Donkey Kong at Spooky Attic
Toadstool Castle: Defeat Donkey Kong at Toadstool Castle
Tropical Island: Defeat Donkey Kong at Tropical Island