I managed the first obstacle (wall jump). But being reset to the start of the level after failing first attempt of the second obstacle ... that felt really punishing.
Same with the replay. It took the momemtum out of trying right again. It is an interesting feature, but did not help the player. Also it made me take my fingers off WASD, to press K and continue playing. There was no permanent setting for that.
Wall jump could have cheated and glued me a little. I would not have minded the help. But it felt nice, the first time I made it work.
The whole design was very engaging. There was no question I HAD to attempt the obstacles. Just driven by the music and the aesthetics.
The menu screenshot you provide on the page, really does not advertise the true quality of the game. Wouldn't a screenshot down the starting position view motivate a download -- showcasing the level design?
Before frustrating out, I did have several minutes of fun with your game :)