SlimY Adventures - PROTOTYP

SlimY Adventures is a game in which you control a slime that you use to fight rats and other monsters. 
It's not finished and I've only finished this small part of the map.
I just want some feedback on the game maybe tips or ideas for my game. 
This is my first game and I'm only eight years old so don't be too hard on me. 
My brother(https://bearchiiieee.itch.io) painted it because I'm not good at painting. 
I also used gdevelop for this game and this text 
was translated into English with google translator, so there might be spelling mistakes.  
Hope you like it at least a little bit.