This entry at first glance looks similar to Celeste but after playing it for a bit you realize that the mechanics call for a totally different approach to platforming. While in Celest you maneuver with key or controller presses in Unduster controlling with the mouse calls for a premeditated placement of the mouse for some maneuvers. The previous jumps can leave your mouse in an unfortunate position if you aren't careful and when approaching the borders of the screen the camera can stop panning meaning that movement may or may not reposition your cursor depending on where you are in any given tileset. With the addition of the push vacuum causing you to need to be on both sides of the player character this is a platformer with a really high skill ceiling.
This game oozes polish from the little sparks off of the batteries to the immaculate tileset and even the soft glow of the backlit torches(which pair with the slowly rising fire animation).
I do wonder if you are all a part of an established team because it certainly seems like it. Excellent entry!