Nice little game, I enjoyed it! The minimalist art style blends well with the theme! The small details (like the character blinking) put a lot of depth to it.
I love the little “puzzle” where you have to enable the two keys to open the door to advance. This adds a bit of a Limbo style to it.
Some small remarks and suggestions:
As pointed out earlier, it is not quite clear that one has to wait for the music to stop to be able to proceed. Maye you can come up with an idea of conveying this to the player in a way that it becomes part of the world. This may be the most important thing to work on, because it can be a show stopper for your game. I’m glad that I read your reply on the forums before playing - I definitely would not have understood how to pass that enemy neither
Some texts run too fast so it is hard to read all of them.
The font and the text color do not match the rest of the art style - maybe you can find a better suiting font and use some less colorful styling?
The jump system could benefit from a small coyote time. Sometimes I felt to hit the jump key being well on the platform but I still fell into the thorny bushes.
The heath is not visible while “fighting” the mind reader. It’s also hard to see the character. I guess it is intended but feels more like a not finished detail. Maybe adding some small color modulation could be added.
Sometimes the knife sound does not play. This may be intended but feels like a bug.
In one place, there is a slope with a 3 pixels edge. Making the character bump into it instead of just walking over it (meaning: forcing the player to jump over it) made it feel like a bug.
One re-spawn point is set too close to the edge and feels cumbersome. The player has to go left before running to the right to gain enough speed to jump on the raised ground. Setting the spawnpoint a bit to the left would make the game flow much nicer in that area.
Hope this feedback does not sound harsh, it is meant constructively! And as I said: I enjoyed the game