Gold coins are the main currency within the game. Coins can be earned by defeating enemies, completing tasks, and can also be given as rewards. Coins must be used when purchasing items and unlocking characters in the store. Having a healthy amount of coins is important so that you can upgrade your characters so that you can run for longer.
There is a constantly depleting bar on top of the screen as you run. This is the energy bar, and this can be refilled by collecting green orbs while running. Hitting obstacles like bombs will further deplete your bar, and leaving it to empty will let the Kraang ship capture you. Thus, it is important to acquire green orbs whenever they appear so that you will be able to run longer.
In addition, filling up your energy bar will let you enter Turtle Time, a mini game where you must tap at circles. As the screen simulates combat, you will be able to earn huge coins that you can use at the store.
After each run, players can spin the Pizza Wheel where rewards will be randomly provided. Extra spins can be purchased using coins, but it would be much better to save your coins for upgrades and gadgets.