Although I rage quit after 10 minutes, I thought the game was very well put together. The music was vibey, art was great, and the gameplay felt fair. My one criticism is that collecting trash felt very separate from the game. Maybe you can reward the player by making it so that each piece of trash you collect increases your maximum jump height?
Viewing post in To Clean The Mountain Demo jam comments
We thought about it then threw it out after a bit of development because in the next jumps you would be thrown off by the change. There's also the aspect that you shouldn't be picking it up just to get a reward with the theme. We might have to go back and figure out what we want to do with it if we keep production going.