Sneak through the underground passage without tearing your scarf.

Finish all the "Back to Origins" paintings

Save all the Teensies in one world to win a Diamond Cup

Kill 5 enemies using turnips

Collect enough lums to unlock 10 Heroes paintings in the Heroes Gallery

Save enough Teensies and get rid of the Dark Teensies to make all the Invasion paintings appear

Unlock all the Challenge paintings

Get rid of the five Dark Teensies

Complete the "Orchestral Chaos" painting

Rescue 150 Teensies

Destroy the parachutes of 5 enemies to make them fall

Finish your first "Back to Origins" painting