Amazing game!! Very very nice job - also that it is your first game, congrats & keep it up!
I got hocked by the precision platforming and the double jump mechanic - very smart idea and excellent execution. It is a very elegant game. The mechanic pushes you to move fast and don't stop moving while the level design requires very precise navigation and everything works only by using the double-jump.
Art is on-point for a game like this and the jump sound is totally enough and immerses you - you become the cute little rock.
I repeat myself but very nice game - amazing work - keep it up and looking forward to seeing more games made by you!