Here is the full list of all 14 Dance of Decapods achievements.
Run 1 cleared.
Run 2 cleared.
Run 3 cleared.
Run 4 cleared.
Run 5 cleared.
Run 6 cleared.
Run 7 cleared.
Run 8 cleared.
Run 9 cleared.
Run 10 cleared.
Beat the game only with melee weapons
Use 4 growers on a single branch of your decapod.
Have a single bullet go through 3 different bullet modifier
Have at least 40 parts attached.