After a race, a bonus chest might appear. It contains one of the following prizes:
- Bonus Coins that increases for each chest (3x, 4x, 5x)
- Bonus Spin
- Bonus Gems
In order to get this prize, you must watch a video ad. If you have seen a bonus coin video, the bonus multiplier will increase. For instance, if you have opened a "3x Bonus Coin" chest, then the next time you get a bonus coin chest then you will be offered "4x Bonus Coins". Opening multiple chests in a row is therefore rewarded.