Hidden deck? Not anymore.
The Cookie Run: Kingdom (CRK) Boss Rush Season 3 is here with new secret synergies or hidden decks to discover. These special combos let you cheese your way into specific bosses and save you time and tickets. There are hints on which cookies you need to use to activate these synergies. You only need to read the boss's information for these clues to activate these bonus effects. However, they can be confusing at times, especially if you are not familiar with the game’s lore.
This is where we come in to help you. This guide will list all the secret synergies in Cookie Run Kingdom Boss Rush Season 3. Keep in mind that if you don’t have one of the cookies for the team, you can always use the Hire-Out Your Cookie function to borrow a player’s unit.
Complete list of hidden synergy for Cookie Run Kingdom Boss Rush Season 3 (hidden decks)
To save you time, here is a quick rundown of all the hidden decks for Cookie Run Kingdom Boss Rush Season 3:
Stage Number | Clue | Hidden Synergy |
|---|---|---|
| Stage 6 | A Mermaid's Tale: Tower of Frozen Waves | Peppermint Cookie Sorbet Shark Cookie |
| Stage 13 | Boss Rush Battle Rules section: Peak of Stillness | Dark Cacao Cookie Mystic Flour Cookie |
| Stage 18 | Boss Name is Sunny Island instead of Strawberry Crepe | Beet CookieEspresso Cookie Black Raisin Cookie Strawberry Crepe Cookie Pure Vanilla Cookie |
| Stage 22 | Boss Info mentions cookies from Beast Yeast Chapter 5 to 6 | Golden Cheese Cookie Burning Spice Cookie Nutmeg Tiger Cookie Smoked Cheese Cookie |
| Stage 27 | Boss Info mentions cookies from Beast Yeast Chapter 11 | Silent Salt Cookie White Lily Cookie Charcoal Cookie Pastry Cookie |
If you want to dive deep into the reason behind the clues and the team synergies, read more below.
Tower of Frozen Waves
Hidden Deck: Peppermint Cookie and Sorbet Shark Cookie
Upon checking the Boss Rush Info for the Stage 6 boss named ???, you will see a line that says “Here, you might require the help of the tower Explorers.” This is a reference to the special episode A Mermaid's Tale. In that episode, the two tower explorers are Peppermint Cookie and Sorbet Shark Cookie as they climb the Tower of Frozen Waves.
Peak of Stillness
Hidden Deck: Dark Cacao Cookie and Mystic Flour Cookie
Stage 13’s hint is very easy to miss, as it is not found on the Boss Info. Instead, you can find it in the Boss Rush event info section itself. If you’re not into reading event mechanics, you really have no chance of knowing this hint.
The clue is in the Battle Rules section that says, “You will need the help of Cookies who have reached the Peak of Stillness for Stage 13.” This is in reference to the two new costumes for Dark Cacao Cookie and Mystic Flour Cookie, collectively named “At the Peak of Stillness.”
Sunny Island Boss
Hidden Deck: Beet Cookie, Espresso Cookie, Black Raisin Cookie, Strawberry Crepe Cookie, Pure Vanilla Cookie
Interestingly, the name of the Stage 18 boss is Sunny Island, even though it’s obvious that it’s a giant Strawberry Crepe Cookie. This clue is a reference to a feature I never took seriously, the Sunny Island. It’s a small patch of land where you can decorate to your liking.
Tap the small island with a face near the port of your main island. This will take you to your own Sunny Island. Check your logbook, and you will see the five cookies you need to use to activate the hidden deck on Stage 18 of CRK Boss Rush Season 3.
The two generals, the queen, and the “god”
Hidden Deck: Golden Cheese Cookie, Burning Spice Cookie, Nutmeg Tiger Cookie, Smoked Cheese Cookie
The Stage 22 Boss Info says, “A general whose mistake cannot be forgotten and his queen. A general who bows to her god’s immense power.” If you follow the story of Beast Yeast Chapter 5 to 6, you will know that they are referring to the story between Golden Cheese Cookie, the queen of the Golden Cheese Kingdom, and Burnt Spice Cookie, one of the ancient Beasts.
Smoked Cheese Cookie made a mistake of betraying Golden Cheese Cookie. The general thought their queen was not doing her job properly, and he was doing it for the greater good of cookiekind. Nutmeg Tiger Cookie, on the other hand, is a general who blindly follows her “god,” no matter what decisions he may make, even if it costs them greatly.
Silence and freedom, a tombkeeper and a judge
Hidden Deck: Silent Salt Cookie, White Lily Cookie, Charcoal Cookie, Pastry Cookie
Similar to Stage 22, the CRK Boss Rush Season 3 Info for Stage 27 gives a clue for its hidden deck. It says “Silence and Freedom, a tombkeeper, and a judge.” The clue is referring to the four main characters in Beast Yeast Chapter 11.
The first one mentioned is Silent Salt Cookie, self-explanatory. The next hint is “Freedom,” which refers to White Lily Cookie. She is the one who knows the reason for all cookies’ existence and is looking for a way to free all of the cookies from being eaten by the witches who made them. Her gacha event is also called Light of Freedom.
The next hint refers to Charcoal Cookie as the tombkeeper, as the story mentions him. The judge refers to Pastry Cookie, who wields the crossbow named the Fork of Judgement.
That sums up our Cookie Run: Kingdom build guide for Charcoal Cookie. For more news and guides, stick around on esports.gg.
