Secret Worlds are themed sets of levels centered around adventurous new mechanics. They offer a focused challenge separate from the main progression! You can discover them at level 61 through the Worlds icon on the Home Screen.

Unlike the core game, an unlocked pack needs keys to enter. You can earn keys by playing core levels.

In Secret Worlds, you earn Badges based on how many moves you have left when finishing a level:
- 3 Badges: Finish with 25% or more of your moves remaining.
- 2 Badges: Finish with 15% to 24% of your moves remaining.
- 1 Badge: Finish with less than 15% of your moves remaining.

Collect enough Badges to fill the progression bar and unlock the Grand Prize Chest!

What do the different World states mean?
- Greyed out: You need to reach a specific level in the core game to reveal this World.
- Available: The World is ready! You’ll see a "New" banner, and you can unlock it to start your adventure.
- Unlocked: You can play levels sequentially and track your badge progress.
- Completed: You’ve earned every badge in this World! You can still replay these levels any time for fun.

How do I unlock a new World?
Your first World is on the house so you can jump straight into the action! Subsequent Worlds can be unlocked using Coins, while Premium Worlds are available via In-App Purchase and come bundled with a stack of Keys.

What if I run out of Keys?
If your Key wallet hits zero, you can get back into the action by:
- Regular gameplay earns you more Keys, use the multiplier to get a boost!
- Unlocking Premium Worlds grant a bunch of Keys to start with.
- Purchasing Keys in special offers.