Hey Bastian, thank you so much for your video review! That was very enlightening :D I agree that the controls are a bit tricky to get into, but I like them because they are not your usual platformer controls. Perhaps I should make the early levels a bit easier, so that you have more time to get used to it.
Anyway, the entire idea is that you cannot go higher than your original jump. So you have to jump from branch to branch to get higher up to the end.
Thanks again so much for your video! That was really nice :) I will check out your game in the evening after work!