This is intended. The idea is to have a precition platformer where you have a timer. It's meant to stress you out. The game is very hard but it's also very short. There are almost always multiple ways to go, so when you get tired of learning one you can always go to the other on.
I get that this is not for everyone, but I think it is a fair challenge and is also very unique.
I'm thinking about uploading a developer playthrough so everyone can experience the ending and see all the upgrades. (Because later you can get an upgrade for the energy you start with).
But thank you for playing and leaving a comment. It's appreciated.