After getting feedback and seeing it played on the stream I wish I had included a more in depth explanation on the controls (along with more time to fine tune them :P). The triple jump requires some momentum to take effect and for some reason I find it to be much more difficult with the space bar vs. a controller for some reason. The majority of seeds I tried I was able to reach the end by heavily relying on the side flip (which also isn't explained very well in game but works similar to the side flip in Super Mario 64) and triple jump.
Thanks for playing!