Lemon Cheesecake there's 2 routes that you can choose. (Technically 3, but the third is boring and have to get to even achieve one of the other 2 endings.)
I finished the easier one.
The harder one......i have never even finished, not even 5 years ago.
I'm stuck on Undyne the Undying rn and probably will be forever lol. I did manage to get her to half health before I lost. I think that's the farthest i got her to.