Of all games I played, whether offline or online, this is the only game that doesn't have a proper ACCOUNT SYSTEM. The game only relies on linking Google Play account to save your progress, and not even useful at all. Imagine you make an online game, but doesn't have a proper accounting system. Lmao bruh. Familiar of signing in by e-mail, google account, google play, and Facebook? Please I'm begging you to add this feature.