Here is the full list of all 36 Juicy Realm achievements.
Clear stage without spending and Gold
Open 50 treasure chests
Use Tokoroa to clear dungeon
Use Amy to clear dungeon
Use Boborot to clear dungeon
Die 10 times
Kill 100 Melons
Kill 100 Apples
Pick up 10,000 Coins
Kill 100 Pears
Kill the Melon Boss
Kill the Cake Boss
Clear normal difficulty
Use Alpha to clear dungeon
Use PonPon to clear dungeon
Clear dungeon with 2 players
Kill the Blueberry Boss
Save your teammate 10 times
Kill the Cactus Boss
Die 1 time