I dig it! The trail behind the player is so simple, but so satisfying and makes everything feel so much more alive.
I really like the idea of the platforms that you have to shoot to get them to move, but I couldn't quite seem to get a good rhythm with them. Most of the time I would shoot them just to watch them leave from under me and drop me onto spikes, haha. Maybe I'm just not good enough (definitely a possibility).
In all, this is a nice little demo level! Looking forward to seeing where you take it!