Zetsuborg (ゼツボーグ Zetsubōgu?) are the main monsters in Go! Princess Pretty Cure. They are created when the Three Musketeers trap people into the Gate of Desperation, which takes away the victims dream. When they are defeated by the first three Cures or by group attacks, they say "dreaming", if defeated by Cure Scarlet, they say "burning".
They are bipedal and have a giant black lock with a red light glowing from the keyhole in front of it. Their actual bodies take on an appearance related to the victim's dream.
In episode 13, they have red locks and a light purple eye were introduced. These are created after Twilight uses her Dress Up Key to unlock the lock the Three Musketeers has before they summon the Zetsuborg.
When Lock powers himself up, he gains a new lock with red horns on it. Those have a glowing yellow eye and red horns as well.
When Stop and Freeze summon theirs, they have two locks that attach to each other, each with a glowing green eye. Shut can summon these as well with his upgraded lock.
Metsuborg, summon by Dyspear using a lock based on her headdress, they have a single red eye and can be purified once their body is destroyed. She usually summons them in attempts to stop the Cures from restoring the rainbows of the four palaces.
|Possessing||Summoned by||Defeated with||Origin|
|Picture Book||Close||Floral Tourbillon||Yui Nanase, whose dream was to become a children's book author.|
|Soccer Trophy||Close||Mermaid Ripple||A soccer player whose dream is to be top scorer in a match and win a trophy.|
|Judo||Shut||Mermaid Ripple||A boy whose dream is to win first place in a judo match.|
|Karate||Close||Floral Tourbillon||Another boy, though it's unknown what his dream was.|
|Camera||Close||Floral Tourbillon||A woman whose dream is to become a photographer.|
|Fashion model||Close||Twinkle Humming||A woman whose dream is to win a beauty pageant.|
|Math Teacher||Close||Twinkle Humming||A young man whose dream is to become a math teacher.|
|Baseball||Lock||Floral Tourbillon||A boy whose dream is to become a professional baseball player.|
|Tennis||Shut||Floral Tourbillon||Yuki Aihara, whose dream is to become a top tennis player.|
|Oven||Lock||Floral Tourbillon||A girl whose dream is to win a baking competition.|
|Camera||Close||Mermaid Ripple||A man whose dream is to become a horror movie director.|
|From the dreams of all of the graduate students of Noble Academy who had them etched on its walls.|
|Donut||Shut||Trinity Lumiere||Ranko Ichijou, whose dream is to become a top idol.|
|Violin||Shut||Trinity Lumiere||Nishikido, whose dream is to becoming a violin teacher.|
|Dorayaki||Shut||Trinity Lumiere||Haruka's family, whose dream is for Haruka to achieve her dream of being a princess.|
|Butler||Lock||Trinity Lumiere||Oikawa, whose dream is to serve his master.|
|Orca||Lock||Trinity Lumiere||Wataru Kaido, whose dream is to interact with peoples around the sea.|
|Octopus||Shut||Trinity Lumiere||A booth owner, whose dream is unknown.|
|Mother and daughter model||Shut||Trinity Lumiere||Stella Amanogawa, whose dream is to walk the runway with her daughter.|
|Rice Cooker||Shut||Trinity Explosion||A cook, whose dream is to share her rice with children.|
|Bunny||Dyspear||Floral Tourbillon||From the Hope Kingdom's denizen, whose dream is unknown.|
|Crystal||Lock||Phoenix Blaze||Yume Mochizuki, whose dream is to fullfill the dream of children.|
|Fashion||Lock||Phoenix Blaze||Kirara's asistant, whose dream is to Kirara seen on all of the covers of the magazines.|
|Fire Hose||Shut||Phoenix Blaze||A firefighter, whose dream is to protect the city from fire.|
|Cicada||Shut||Phoenix Blaze||A cicada, whose dream is to fly freely.|
|Cheerleaders||Shut|| Trinity Explosion|
|Yuki's fans, whose dream is to support Yuki for his tennis match.|
|Sketchbook||Lock||Phoenix Blaze||Yui Nanase, whose dream is to become a children's book author.|
|Soldier||Dyspear|| Floral Tourbillon|
|Flower||Stop & Freeze||Eclat Espoir||Hanae Komori, whose dream is to become a flower arranger.|
|Groom||Stop & Freeze||Eclat Espoir||Kimimaro Ijuin, whose dream is to walk alongside Minami.|
|Shark, Eel & Pufferfish||Shut||Eclat Espoir||A trio of black cats, whose dream is to enjoy some fish.|
|Makeup||Stop & Freeze||Eclat Espoir||Kirara's makeup artist, whose dream is to make other girls pretty.|
|Doll||Stop & Freeze||Eclat Espoir||A little girl, whose dream is to become a princess.|
|Penguin||Stop & Freeze||Eclat Espoir||Asuka Kitakaze, whose dream is to see the ocean.|
|Movie Director||Stop & Freeze||Eclat Espoir||Riko Furuya, whose dream is to become a movie's director.|
|Romeo||Stop & Freeze||Eclat Espoir||Kenta Hirano, whose dream is to become an actor.|
|Robot||Shut||Eclat Espoir||A boy, whose dream is to play his robot.|
|Sketchpad||Stop & Freeze||Grand Printemps||Yui Nanase, whose dream is to paint a book about those who protect dreams.|
|Model||Stop & Freeze||Grand Printemps||Karin Akeboshi, whose dream is to be on the same stage as Kirara.|
|Chef||Stop & Freeze||Twinkle Humming||A chef, whose dream is unknown.|
|Blackboard||Shut||Grand Printemps||Sumire Zama, whose dream is to support student's dreams.|
|Servant||Warp||Unknown||A Pumpkin Kingdom's fairies, whose dream is to see Pumpululu eat pudding.|
|Knight||Warp||Unknown||A Pumpkin Kingdom's fairies, whose dream is to see Pumpululu eat pudding.|
|Pumpkin Guard||Night Pumpkin||Unknown||None|
|Ki Inu||Emerald Reincarnation||Unknown|
- Their name is a hybrid between Zetsubō (Despair) and Cyborg.
- When they are defeated, their light fades away in a way in which it looks like they are closing their eye and they say "Dreaming...".
- Like the Jikochuu and the Saiark, they are created without fusing objects.
- They are voiced by Takayuki Nakatsukasa.
- Each of the commanders use their names when they trap people's dreams. Close says "Close Your Dream!", Shut says "Shut Your Dream!", Lock says "Lock Your Dream!", but Stop and Freeze says "Stop, Freeze Your Dream!".
- As shown in episode 17, two of them were created when one person's dream get trapped.
- In episode 26, Shut target the cicada, making it the first animal to become one.
- In episode 27, three of them are created. Followed by episode 33.
- Yui is the only victim who fought back against the Zetsuborg from the inside, immobilizing it and allowing the Cures to defeat it.
- When Dyspear summon hers, she using a special lock with horns that look similar to those on her headdress. They have a single red eye and can be purified once their body is destroyed. She usually summons them in attempts to stop the Cures from restoring the rainbows of the four palaces.
- Like the Desertrians and the Jikochuu, the person they took over gets paralyzed or goes into an unconsciousness state when healed.