Thank you for the comment !
Yup I understand that this part is not super clear unfortunately^^ In fact the "vine spring" is an enemy, which pushes you back and inflict damages when you touch it. There are two ways to pass the jump where you died :
- you can use the enemy as a spring
- you can do an almost pixel perfect wall jump on the wall on the left, but this one is pretty hard to do
Using the enemy that pushes you back is indeed the easiest way, but costs you one health. There are sunbeams just next to this passage so you can heal between each attempt if you don't make it first try, so after the jump you still have maxHealth - 1 to reach the next sunbeams !
Hope that makes things more understandable :)