Lol, that's actually a pretty common thing with Renpy files on Android apparently. If I remember right all you need to do is rename the file so the extension is .zip but I could be wrong about it.
I am actually working on a new update for Pokemon Babysitter right now, so it's funny that you decided to pop up now. At the moment I've got about 49 images completed for the new update which should be pretty short, just wrapping things up with a happy ending. I will warn you that Pokemon Babysitter is probably one of my most surreal visual novels which you might like or dislike depending on your mindset.
If you're into guys dressing up like girls, my Pet Foxes visual novel features a decent amount of guy x guy scenes, but I'd probably recommend my newest project Werewolf Labyrinth School for femboys specifically even though it will likely not feature explicit sex it does feature nudity with Casper, who is probably the most feminine boy I've ever designed who gets into a relationship with a masculine girl. That said, if you get deep enough into Pokemon Babysitter where it becomes similar to one of those psychological 90s movies (Fight Club, Transmetropolitan, Trainspotting) you'll get to experience a really weird NSFW scene with Babysitter and a prince.
Anyways, nice hearing from you and I hope you get a chance to play and hopefully enjoy my weird visual novels.