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Cookies' special Skills become more powerful with upgrades. Additionally, you get Escape Points with each upgrade.

To upgrade a Cookie, you need to find enough Cookies of the same kind. If you do not have enough Cookies to upgrade, you can use Spirit Potions instead.

You can check the number of Cookies at your disposal on the Cookie selection screen. When the Upgrade Bar turns green, it means that you can upgrade the Cookie.

Rarity Edit

Pets come in three levels of rarity: Common, Rare, and Epic. The rarity level is shown on the Pet selection screen.

The maximum level is 25 for Common Cookies, 20 for Rare Cookies, and 15 for Epic Cookies.