Hey there,
I tried to hack this game, which somewhat worked out. Sadly, they have some form of mechanism to detect manipulated values.
So far, I managed to change the values of Crystals, Tokens and Tickets directly, but even changing the crystals alone seems to be hard (for me), without getting forced to hard reset the game.
I initially thought that they have a counter for the gems you have, the earned ones, and the ones you can still spend, which apparently is the case, but I still can't seem to get it to work properly.
Please note that the screen, that forces you to hard reset, only appears after restarting the game, it won't show up right away.
I'd be happy to hear any ideas or instructions how to achieve editing the crystals, and preferably tokens, without getting forced to hard reset.
Kind Regards!