The game offers in-app purchases, but these involve spending money rather than earning it. However, some mobile games have reward systems or ad-based incentives that may provide in-game currency or bonuses for players, but this isn't the same as real money.
Coins can be obtained in many ways, for example, collecting them while in the subway or receiving them from mystery boxes. With enough coins, players can buy characters like King, Zoe and Prince K, or hoverboards like Panda, Hot Rod and Lowrider.