Really cool game, some of the puzzles were head scratchers for sure. Sacrificing fairies is a fun mechanic, I liked the first level it's introduced in. The one that I probably spent the most time on is the level with three horizontal platforms filled with switches. One wrong move and it sent the blue fairy into the stratosphere, also the way that selection mode works didn't help. Maybe it would be easier to click on the fairies to select them instead? Similar to something like Heat Signature where you can press space to pause and plan.
Also, sometimes the throwing marker displays incorrectly, I lost a couple of good attempts to that.
Music/SFX was pretty fun to listen to, I especially like the fairy waking up noise haha
I had fun playing this, looking forward to seeing more!