itch.io

The plug in "joiplay" is free on patreon. Just go to it and download it. You might need an additional plug in but the game should tell you which one

When you click on downloads in itch theres a smaller patch that goes from .17 to .18.1 (should be the bottom one) download that and in joiplay hold the game and there should be like a patch button or something and then select the file thay you download

Gotta download joiplay from patreon or other  website (type in joi play pluggin and it should pop up with it, it was in a different language for me but after some google translate i got it) and then when you download the android one just click on the .exe game file. Should work. Oh and you need the ren'py plug ins too. It's all for free btw.

Do you have her working?

Read the dialogue during the fight, if she aims at someone then block them, but if she's winding up an attack then hit her with an attack. I had to re do it 4 times before I got it