I'm really hesitant to outright explain anything in game (I want to rely on the level design and player experimentation to teach mechanics), but the idea there was that both characters are able to turn towards "transparent" obstacles, like the hole/pit you see on "Turn The Other Cheek", which was supposed to display said idea.
It's an extremely unintuitive and clumsy (but necessary) mechanic that I wish I had spent MUCH more time on developing the feedback necessary to allow for players to understand it. Probably my number one regret for this jam, haha. I'm glad you liked parts of it though! :)