The game is quite hard, and it focuses on fast play-style.
That’s why the player is restricted to the first level, which is relatively easy, before playing the other levels - so the player has basic mastery of the game before trying harder levels.
Precise jumps being hard is a perk of the character controller, it doesn’t have a lot of error margin for not being directly above ground and it accelerates quickly making jump timing hard. We made some of the platforming sections easier in the last update.
If you want to take your time to find secrets you can turn off “Deadline Mode” in the gameplay settings.
No one ever reported random player rotation, is it something u can reproduce?
In the last update I added Steam Workshop support and several improvements.