The Extra Roulette is unlocked after your first level up of the day and must be claimed within 24 hours.
The Super Roulette becomes available every 10 levels, giving you access to even bigger rewards. From Level 10 onwards, you'll also have the chance to land on the Huge Jackpot.
The Ultra Roulette is unlocked every 50 levels and offers the opportunity to win even greater rewards.