Here is the full list of all 28 Gorytale achievements.
Complete the tutorial in annoying mode.
Complete the story one.
Shoot a cannon ball through a doughnut's hole.
Complete the story two.
Complete the hell story.
Flip off while not in tutorial.
Kill a Chilli Bomber with bare hands.
Find D secret.
Find fish secret.
Kill flying ice cream monster using the Toaster.
Kill yourself with the Doot.
Upgrade all the weapons to the max.
Avoid being damaged in arena for two minutes.
Complete first story level shotgun altar arena using only your bare hands as a weapon.
Shoot the rifle magazine without hitting any enemies.
Survive any arena mode for more than 5 minutes.
Kill 500 creeps.
Kill 1000 creeps.
Kill 10000 creeps.
Destroy Candy Mountain’s cherry projectile.
Kill Diarrhio when its about to fart.
Fall off the game map.
Fill your purse with 1000 coins.
Kill 10 creeps with single cannonball.
Get owned by a banana.
Find the CHOPPA secret.
Enter free candy van
Make a basket.