I think we need more jump height, also if you hold space the debug shows up
Figured out first jump, after jumping, spam d at the top of your jump to get to the first ledge, then bounce off the little block in the middle and cancel the momentum by pressing a immediately after bouncing to let you get on top of the block. Then proceed to bounce off the next ledge and press a again to cancel the momentum
It appears that after the third room there is nothing left. So far the animations look pretty charming, but there are some bugs to work out. For example, pressing space which I assume is the attack key, makes the development console pop up with red text showing "invalid container" and there is no rooms connected after the third room, which is either a bug or just not too much content