Complete World 1.
Complete World 2.
Complete World 4.
Complete World 3.
Complete the game.
Complete World 11.
Complete World 10.
Complete World 9.
Complete World 8.
Complete World 7.
Complete World 6.
Complete World 5.
Get to the door before your friends do in all rooms where your friends are with you in world 1.
Spend less than 1.5 seconds inside each cannon in rooms 7 and 8 in world 2.
Don't get hit by any eyes in world 3.
Get hit by every projectile type exactly once in world 4 room 10.
Finish rooms 2 and 8 in world 5 without picking up any items.
Don't take any damage while inside pipes in rooms 7, 8, 9, and 10 in world 6.
Don't make any unnecessary character switches in rooms 6 and 7 in world 7.
Complete world 8, room 6 with only two Companion spawns.
Destroy all non-damaging light crates in world 9, room 7 without dying. If you die, you need to restart the room from the beginning.
Finish world 10, room 2 while only using the ice block once.
Complete world 11, room 5 while touching the ground for less than 3 seconds.
Complete world 12 without taking any damage. If you take damage, you'll need to restart the room you're currently in.