Great game! I like how you get the ability to dash when you switch to playing as Yaga. It lets the game get more difficult without feeling unfair, while also showing that Yaga herself is a more experienced tunnel runner than Ula is. Very elegantly done!
I did run into a problem with the lightning traps on some of Zmora's levels, though -- The telegraphing "[!]" sign shows up kind of early, so there's like a half-second delay between the sign appearing and the trap actually going off. During that half-second, I found it very easy to miss that the sign appeared at all, so I often got blindsided by those traps.
Otherwise, the girls are cute, the controls feel sharp, and the game is extremely fucking challenging in just the right way. I can't wait to see what you make next!