Hateful Pump: Inflation-themed RPG
 

https://shamefulradio.itch.io/wicked...-version-alpha

This RPG allows players to finish off enemies by inflating them. The main character can also inflate herself to gain two new moves. Right now there's only a demo available, but it shows a lot of promise. Every enemy has a multi-stage inflation.

EDIT: Sorry, the title is WICKED Pump. I don't know how I messed that up.