This is such a nice, (mostly) calming game! It might feel really nice if holding spacebar was inhaling and releasing spacebar was exhaling, instead of just having it be a toggle.
Thank you! :) I actually tried that out and it didnt't feel so good in the fast paced moments, where you have to toggle fast, as it didn't feel so reactive. So i changed it again. But it definitely something that could fit with a bit of tweaking :)