Here is the full list of all 12 Pluto's Island achievements.
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Deposit 999 souls into the Volcano!
Find the god of the Swamps!
Find the god of the Catwalks!
Find the god of the Sewers!
Find the god of the Village!
Find the god of Rizzington!
Collected all of the Battlecrab cards!
Hold over 10K coins at once!
Collect all of equipment items in the game!
Reach crazy high speed!
Beat the game!