Ok to give a fully thought out comment: this game could very easily be a good horror RPG. And I kinda like it for that.
It's also the most unique of your games. Usually the growth is barely controllable but here there's almost complete control of it... Minus the slimes. I like the trade off of bigger bringing both benefits and more risk...
Slight issue, in my opinion atleast, the belly expansion felt kinda... Optional. At most being a consequence of recklessly running through dark caves, which is a pretty big contrast from other games where you were constantly growing. This is just me but the need to use the Soda to increase resolve didn't feel too necessary (this was act one though so I get the game can't be too punishing on you.) And with how big you can get from the start I didn't feel too threatened by the slimes nor the depleted resolve from each swallowed slime.
I do get you just started this project and it was rushed for the game jam. Speaking from experience (barely any) coding functional games takes a while to do. Coding functional and fun games is a really difficult thing to do.
Maybe since all food in town is in some way connected to making you full of these slimes, you could make it so more size makes you crave more slime (you stop sprinting when near slimes or enemies. And when your even bigger you randomly consume a soda just to satisfy yourself.)
Overall-
