This was a solid entry! I don't even need to speak for the UI and graphical elements, you've got seasoned hands on it. The movement had weight to it, and I liked the dual-split ability mechanic between the two sisters. The chaos orb was quite uh, interesting to learn the effects of and die multiple times to undo LOL, but quite enjoyable! It could've been explained somewhere, maybe with a passing remark about something chaotic when one of them picked it up.
Boy, was the level design tough! It took quite a few tries to clear that upper area, and even then I had to take a second to think about some of those nuanced jumps. I like the skill ceiling in that respect, gives you something to chew on! The lack of audio is definitely felt, I can picture some fantastic music that fits this metroidvania platformer-style beat (ayo where's ludo). Loving the capture of their bau bau banter, too!