Very nice visuals and music.
The gameplay was kinda frustrating though. The hitboxes on the spikes and enemies feel really unforgiving, and the level design was also very unforgiving. Felt like the game didn't want me to play or explore it. I'd really like to see what comes later, see the map, see if any mechanics change. The planet text with gravity implies to me that there are other planets with different gravities or other different properties, but the gameplay is too frustrating and not super engaging, so I can't really bring myself to progress. Sorry :/
I'm sure with playtesting and tweaking you could make something very special out of this, and again the art + music is really quite excellent, but I can't get through this one. Not my cup of tea unfortunately.