Interesting concept both in gameplay and idea! I like the fact that there's 2 endings where you separate everyone and when you merge everyone. I wouldn't find out the merge if it weren't for the tutorial, though since it's a bit confusing what I was supposed to do with the creatures at first. (I thought they're enemies and I tried to avoid them for a bit in the beginning)
Would be great if there's a keybind option, the default control is a bit difficult for me to press since x and c are next to each other. But the character movement feels nice overall and good to control.
I like the animation too btw! Good job!