Get your first hat by defeating the penguins!
Defeat the first boss
Complete all levels
Complete the game on hard mode
Collect all the hats in the game
Find your first golden melon piece
Find all six golden melon pieces
Find a secret room
Buy all the upgrades
Get 3,333 coins
Activate the Easter egg
Complete any level in under 100 seconds
Use the moon walker code
All Penguin must go, even the innocent ones
Collect over 80 coins in a bonus level
Finish a bonus level without dying