Looking for secret synergies or hidden decks in Boss Rush Season 4 of Cookie Run: Kingdom? Check out our guide for the answers to each clue.
Cookie Run: Kingdom Boss Rush Season 4 is ongoing, revealing multiple hidden synergies you need to discover. Just like the previous seasons, some bosses have clues in their descriptions. These hints can guide you in uncovering powerful team compositions. Some can be pretty obvious. However, there are a good number of bosses with vague descriptions. This can be confusing if you are not familiar with the game’s lore.
This guide will list all the secret synergies in Cookie Run Kingdom Boss Rush Season 4. If you don’t have the cookies listed below, you can always use the Hire-Out Your Cookie feature to borrow units from other players.
Complete list of hidden synergy for Cookie Run Kingdom Boss Rush Season 4 (hidden decks)
To save you time, here is a quick rundown of all the hidden decks for Cookie Run Kingdom Boss Rush Season 4:
| Stage Number | Clue | Hidden Synergy |
|---|---|---|
| Stage 3 | Cookies waiting in the Artist Zone shine with light | Sparkling Cookie Carol Cookie Werewolf Cookie |
| Stage 7 | Boss Rush Battle Rules “Dragontongue” | Pom-Pom Dough Cookie Mold Dough Cookie Venom Dough Cookie |
| Stage 10 | TBA | Fire Spirit Cookie Agar Agar Cookie |
| Stage 19 | The witch and her sinister followers | Dark Enchantress Cookie Dark Choco Cookie Poison Mushroom Cookie Licorice Cookie Pomegranate Cookie |
| Stage 25 | Unforgettable winter concert for just two | Cocoa Cookie Mint Choco Cookie |
If you are curious about the lore behind these hidden synergies, read more below:
Cookies in the Artist Zone
Hidden Deck: Sparkling Cookie, Carol Cookie, and Werewolf Cookie
Checking Stage 3 of the Boss Rush Season 4 of Cookie Run Kingdom, Shocka Rocka, you will see the hint “Cookies waiting in the Artist Zone shine with light.” Going through the Summer Soda Rock Festa Special Episode, you’ll eventually unlock the Artist Zone. Once you complete the side story, you can see Sparkling Cookie, Carol Cookie, and Werewolf Cookie hanging out near the fountain.
Dragontongue
Hidden Deck: Pom-Pom Dough Cookie, Mold Dough Cookie, Venom Dough Cookie
The clue for Stage 7 can be found in the Boss Rush Battle Rules section. Click the “i” button in the top left side of the screen. The clue “Reach Stage 7, and you will sense the power of Dragontongue” refers to Dark Enchantress Cookie’s failed cookies. Each of them has the power of Dragontongue embedded in their dough. Here is a quick rundown of their marks.
- Mold Dough: Life
- Pom-Pom Dough: Death
- Venom Dough: Gluttony
Additionally, they also faced Pitaya Dragon Cookie in battle in Episode 14.
The witch and her sinister followers
Hidden Deck: Dark Enchantress Cookie, Dark Choco Cookie, Poison Mushroom Cookie, Licorice Cookie, Pomegranate Cookie
Stage 19 arguably has the easiest clue. Reading the Boss Info, you will see the “You recall the banquet in the Timeless Kingdom with a witch and her sinister followers” sentence. The witch refers to Dark Enchantress Cookie along with her loyal minions. Dark Choco sticks like a sore thumb on the list. This is because he used to serve Dark Enchantress when he was corrupted by the Stawberry Jam Sword. However, he was not committed to being evil. He was just mentally and emotionally broken.
Unforgettable winter concert
Hidden Deck: Cocoa Cookie, Mint Choco Cookie
The Stage 25 clue “What was that about the unforgettable winter concert for just two?” is referring to Cocoa Cookie’s story in the game. In this side story, Cocoa Cookie went on an adventure to see Mint Choco Cookie perform on stage.
That sums up our Cookie Run: Kingdom guide for Boss Rush Season 4. If you want to stay ahead in the meta, check out our updated tier list where we rate the best cookies in the meta. This includes content like the Kingdom Arena PvP, Guild Battle bosses, and World Exploration.