The first impression was not very overwhelming. but as soon as i unterstood, what i am supposed to to, it was entertaining enough to play a handfull of levels. good for a first jam entry (and i suppose the first time 13kb)
Good concept, definitely needs better graphics and effects (particle-effects, movement trails, screen-shakes, etc.) and sound.
Welcome in the "League of 13kgame Devs" :-)
If you want to dive deeper in the pool of 13k fun, here is a great list of resources for or "special interest": https://js13kgames.github.io/resources/