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Popular articles
What are the advantages of Pro Kit Cards? Where can I find them in the menu?
Pro Kit Cards & Upgrades
Why can't I apply the cards I have in my inventory? When I go to the Upgrade section, the game shows that I don't own these cards.
Pro Kit Cards & Upgrades
"Update" button on the pop-up message in the game doesn't work
Known Issues
What do boosts do?
Credits
What is a Ghost?
General
Pausing Google Play's billing system for users in Russia
Known Issues