Yea, the main thing to improve on would really be making sure the player has enough visibility, cause the camera does feel a bit small sometimes, and you can't see stuff below, also, I might have accidently soft locked myself at the start, so make sure there is a way to restart or escape from there, other than an optional thing that might be good is to add a different enemy, e.g. flying or something. Still tho I love the concept.