|Release date||15 September 2016 (Update)|
|Conveniently, he's big enough to operate the pump handle.|
Pumpy is an NPC operating the pump handle within the Blast Furnace on World 358. Players can speak to him to learn about operating the furnace.
Speaking to him or his brothers, Dumpy and Stumpy, will reveal that they have a rare genetic condition that makes them unusually tall. The player points this out, but he will say that this condition benefits them by allowing them to efficiently operate the blast furnace.