the game blows, I decided to play through it until I unlocked everything. way too many ads, the loophole for that is just turn off WiFi and data while u play, u can still unlock the items even though it says u have to watch an ad. also, the games so underdeveloped that finding a money bug was a no brained. next to the power and speed upgrades is the “offline money” upgrade. upgrade that, then go into a race, click restart once the 3,2,1 counter is finished and the game registers it as if u were just logging on, u can get unlimited gold by doing this process repetitively. overall, the game blows and took up too much of my time I didn’t think it would.