Mmm... it seems like when you escape from them you end up in some room with a bunch of slime like a swamp, there is a choice to move slowly or quickly, if you are quickly grabbed and fucked by tentacles.. If not this then I have no idea,
It should work fine with JoiPlay I'm pretty sure, I don't personally play on Android so I can't help you more than that but if you go to the F95 thread for Universal Renpy Mod, I'm sure you can find some posts that has some more info on it.