Its a decent platformer concept, controls well enough especially in air which is pretty important.  The jump was very floaty, but sometimes trying to jump immediately after landing would do a short jump which usually lead to dying.  I feel like there needs to be more variety in the levels, many were the same jumps, and probably check points mid level, also lava should probably have a distinct appearance from the rest of the ground.  I wasnt sure if there was some secret i missed, but levels 5 and 10 didnt seem to be beatable?