Complete all levels in world 1
Complete all levels in world 2
Complete all levels in world 3
Complete all levels in world 4
Complete all levels in world 5
Complete all levels in world 6
Complete all levels in world 7
Complete all levels in world 8
Find the map on every level
Collect all coins on every level (including bonus levels)
Beat the best time on every level (including bonus levels)
Find the King of Ducks