1.- Use Pi Browser. Mine PiPi Browser Google PlayPi Browser App Store
2.- If you have biometric capabilities in your phone, activate it in Pi Wallet, or deactivate at all in all the phone. That's a behavior of Pi Wallet, to avoid errors with it.
3.- In the top of the page, there is a change language option: Spanish and English.
4.- Gaming Universal rules.
Chess: Rules
Sudoku: Rules
Snake: Rules
5.- Enjoy the App.