In Rider Worlds, players control their bikes using simple taps and gestures. Tapping the screen accelerates the bike, while tilting the device helps in performing stunts and adjusting the bike's angle during jumps.

To perform stunts in Rider Worlds, jump off ramps and quickly tilt your device. Different combinations of tilting forward or backward will result in various stunts, allowing you to earn more points and boost your score.

Yes, players can customize their bikes by collecting in-game currency. Use the currency to unlock new designs, upgrades, and special features, enhancing both performance and aesthetics.

Improving your ranking requires consistent performance. Focus on completing races without crashes, perform successful stunts, and aim for faster finishing times. Participating in events for additional rewards can also help you gain a better rank.

Unlocking new levels and challenges in Rider Worlds requires completing previous ones. Successfully finish races and achieve specific goals to progress through the game. Below are the steps to unlock new content:
1. Complete the current level.
2. Achieve the required stars or points.
3. Check for any criteria set for unlocking.
4. Access the next level in the menu.