There are too many sections requiring wall-jumping parkour, and there's absolutely no opportunity to return to the main storyline. I think either the difficulty should be reduced, or the option to abandon the attempt and return should be given.(Chinese translation)
Viewing post in Project: G.L.U.T.T. v0.9.0 alpha comments
I've added some extra platforms in v0.9.1 to help with the wall jumping sections. In the future I also won't be adding nearly so many jumping sections so close together. I'm not sure what you mean about returning to the main storyline though, you can always go back to any part of the game that exists so far.