Keys can be used to:
- Buy Dipsters
- Evolve Monsters on Amber Island
- Unlock Evolution for Wublins
- Buy Dormant Celestials
- Unlock Ascension for Young Celestials
Keys can be earned by:
- Receiving them as gifts from Friends
- Collecting Daily Login Rewards
- In-App Purchases
- Completing Colossal Conundra
- Collecting Keys from Celestials
- Progressing in the Versus Mode on The Colossingum
- Collecting them as Bonus Items
- Collecting from the Nexus Nucleus on Magical Nexus
- Playing the Memory Game and Spin Wheel