If you're having trouble with the boss Mushna, I recommended stocking up on mushroom soup from the shop so you can heal when you're low on health. Hope that helps!😁
I'm not really sure about adult games on Android. You could try Action Taimanin, which is a spin-off based on a hentai series of games but unlike the main games, I believe it's cut the Hentai content. You could also play games like Honkai: Star Rail or Genshin Impact on Android, but these games are also not Hentai games.