The feeling of jumping in the game is very nice and felt like I could just do that for a while. However, making progress is very difficult. Not being in control of the direction you move is already a difficult premise, so making the walls you have to progress through invisible just seems cruel to the player. If you had better control, sure invisible walls are fine, but with no control it increases the difficulty a lot. Maybe this is just me, but I kept getting confused about which direction the arrow indicated I could jump. My brain wanted it to be rocket trail, so I get thinking backwards was forwards. Again that may just be my brain.
Good work overall!