Very cute art! I would say that the UI needs a bit of tweaking. I felt that the sliders in the options menu were getting a bit lost in the pastel background. The pause menu buttons needed to be bigger. I think I would've preferred the menu to be an overlay over the game itself. It would've made it feel less like small buttons in a huge empty space, if that makes sense. The dialogue text could've used a darker outline so that it could pop out more on the dialogue window. I did find there was a bit of difficulty spike with all the hills. I kept trying to go over the hills as carefully as I could but there were several times where I would push a button and the cart would go flying. I would've liked if there was more a gradual build up of hills as you go through the level so that the player is given more time to slowly build up their skills with navigating the cart. But great use of the theme!