Here is the full list of all 15 Shape Shift Shawn Episode 1: Tale of the Transmogrified achievements.
Transform into Spitfire Shawn.
Transform into Stretchy Shawn.
Transform into Strong Shawn.
Transform into Sticky Shawn.
Find a hidden key.
Defeat Eggbert the Engorged.
Defeat Cecilia the Congealed.
Defeat Barney the Brumal.
Find the World 1 secret level.
Find the World 2 secret level.
Find the World 3 secret level.
Complete "Tale of the Transmogrified."
Complete 100% of "Tale of the Transmogrified."
Unlock handheld retro mode.
Buy the echolocator from Rump-a-stump.