Very nice jam entry! My main issue was that I sometimes felt out of control. In particular the double jump sometimes didn't work (or it registered the second jump as soon as I left the ground, not sure). Automatically dashing after killing an enemy is nice, but it probably shouldn't throw you off the platform you're standing on :) I was right at the end sign when I killed an enemy there and the teleport threw me all the way down.
Also the Godot logo showed up several time, I assume it's placeholder that you didn't have time to finish - or was that a bug?