Start the game.
Manually change the difficulty.
Make it to the first challenging level.
Die 100 times.
Beat the boss of the first chapter.
Make it to the end game credits.
Use the glitch.
Mess up Squid's presentation slides.
Complete the 3rd "real" level.
Collect one quarter of all difficulty points.
Collect half of all difficulty points.
Find the smily minigame.
Collect three quarters of all difficulty points.
Find the alternative ending of the game.
Beat the boss of the second chapter.
Reach level 100 in the smily minigame.
Start a fresh game and reach the end in less than 30 minutes without using exploration mode.
Find all exploration points.
Find and visit every level.
Beat the boss of the third chapter.
Find one third of all exploration points.
Collect all water drops in every level while the pump is broken.
Collect all difficulty points.
Die 1000 times.
Show Squid your new hat.
Find two thirds of all exploration points.
Make it to the end of the game with 0 deaths (without using exploration mode).
Beat the boss of the fourth chapter.
Return for a 2nd play session.
Admire your beautiful 100% save file in the save slot selection.