The PowerUps will make it easier to answer questions correctly. They'll unlock as the collections are completed or can also be purchased in exchange for gold bars, each with a specific price.
At the beginning of a classic game, you'll have the option to buy packs of PowerUps. You'll also be able to purchase them during a game, but individually.
The different PowerUps are:
Extra Time: gives you more time to answer the question. This PowerUp appears when the time to answer is over and if you have enough coins to use it.
Bomb: rules out two wrong answers from the available options.
Double Chance: gives you two opportunities to answer. If you don't get it right the first time, that's fine, you'll have another chance.
Skip: If you don't like a question, you'll be able to use this PowerUp to change it for a different one.