Thank you so much for yoour kind words! Especially in regards to the leaves- it was important to me to make them distinct yet simple looking.
Regarding your comments:
1. Adding curve of difficulty using animation curve is an EXCELLENT idea. I'm not sure if I can add it just yet (Jam rules say no more content during voting duration) but it is a good idea for later implemination, as well as just good note to keep in mind in next projects.
2. Regarding controls- you are absaloutly correct. Originally, I wanted to creat a game to literally keep both of your hands busy, but tbh there's no reason you couldn't play just with the arrow or the WASD keys. I might look into it after the end of the Jam.
Once again, thank you for your kind comment and taking the time to play my game!