HomeReturns to the Android home screen, suspending the Ren'Py game. As part of the suspend process, Ren'Py will automatically save the game. If necessary, the save will be automatically loaded when the user returns to the game.
MenuBrings up the in-game menu, and returns to the game.
BackRolls back.
Volume Up, Volume DownControls Android's media volume.
The controls aren't perfect, keep in mind the next tips:
1) The menu button(your hardware/software button to access app's menu) is very important in this game, you will need to use it to access some menus (especially a menu in-battle which will allow you to use Auto-Battle option).
If you don't know which is the MENU button, have a look here: https://www.whatsapp.com/faq/en/android/21228643
2) When you want to scroll a in-game list, you need to tap on that list's scrollbar.