Treasure Trove (may also be called "Ancient Treasures") is a limited-time offer in the game that provides an excellent opportunity to receive valuable rewards.

 Some of them are available for free while others can only be purchased.

To receive each award, you'll need to unlock the previous one first.

The more rewards you unlock, the closer you get to the bonus treasures - look out for them on a progress bar above the rewards.
The rewards include energy, banknotes, boosters, dynamites and more!

New treasures are added regularly, so be sure to check them for fresh opportunities!