Why does it go portrait on mobile and how do i futa up
You can go landscape, but the screen size stays a square by design, emulating old handhelds and tvs, which is a recurring theme with pacman for the gamejam Futas of Eden was a part of. A eventual full release of the game will fix this.
You become futa by completing any level, and then the other girls become futa by clicking on them after lvl 1 to 4, depending on the girl.