100% Orange Juice Wiki
Gamemode coop.png

Co-op Mode is an alternate game mode in 100% Orange Juice!. It originally debuted as an early concept on July 25th, 2018 with the Beach Party event, and was later reintroduced to the game as a permanent mode on May 16th, 2019 with the Minions of the Master event.

Co-op Mode is a game mode where, instead of competing against each other, all 4 players must pick a special co-op role and work together as a team to defeat a powerful Co-op Boss, who functions as a fifth character on the map. Players will not be racing for Norma against each other, but will instead achieve Norma together in order to raises their stats and use stronger cards. Players must defeat the boss to win the game, and will lose if all of them are KO'd at the same time. Utilizing the abilities of each co-op role is essential to the players' success.


To switch to Co-op Mode, the player must toggle the icon located next to the board menu. This can be done in both custom singleplayer games and online games. The player can also join an online Co-op lobby, by selecting the "Co-op" tab at the top of the online lobby list.


Important Changes[]

Before examining the particulars of the mode, below is a basic list of rule changes the player should be aware of:

  • Along with selecting a board, the host must also select a co-op boss and difficulty before the game starts.
  • Special co-op boards, made specifically for the mode, are available to play on (depending on the selected difficulty).
  • Field events cannot be enabled in this mode, and are instead replaced with mixers.
  • All players choose a co-op role during character selection. Characters gain additional passives and abilities depending on their co-op role.
  • Characters with a base ATK above 0 have an increased base REC stat, calculated by the formula [base REC] + [base ATK].
  • The effects of some cards and character passives are altered.
  • During deck selection, all cards are assigned either 0, 2, or 5 deck points. The combination of cards that may be chosen are limited based the player's current deck points. Some cards are also ineligible to be decked in Co-op Mode.
  • The co-op boss plays alongside the other players as a 5th unit on the board.[note 1]
  • Instead of winning using norma, the game is won when the boss's HP reaches 0, and lost if all four players are KO'd at the same time.
  • All stars, wins, norma levels, and ability to stop at  Home panels are shared between all 4 players.
  • Both types of norma checks (stars & wins) are simultaneously enabled.[note 2]
  • Every player's hand is visible to all other players.
  • Players will lose only 1/8 of their stars on KO.
  •  Bonus panels are not capped at level 3.
  •  Encounter panels have different enemies, which vary depending on the Boss.[note 3]
  • Stars norma requirements are multiplied by 1.5, and Wins norma requirements are multiplied by 2. Norma level 6 cannot be achieved in this mode.

Level Stars Victories
2☆ 15 2
3☆ 45 4
4☆ 105 10
5☆ 180 18

  1. Swimming Coach is an exception, appearing in the background rather than the board itself.
  2. Does not apply to characters with passives that restrict norma selection.
  3. Does not apply to Summer Beast, RoPoChi, or Swimming Coach.

Character Changes[]

Co-op Mode makes adjustments to some characters' stats and passives, both to adapt characters to the mode's unique mechanics, as well as to prevent certain characters from being overpowered in the mode.

REC Changes

In Co-op Mode, characters with a base ATK stat above 0 receive an increase to their base REC stat. For these characters, the new REC stat is calculated by the formula: [base REC + base ATK]. Characters with a base ATK stat of 0 or below have unchanged REC stats. Shifu Robot's REC stat also remains unchanged, due to its passive.

For some characters, this results in a REC higher than 6, meaning the character needs to roll a 6 to revive for more than one turn. For instance, a character with 7 REC will need to roll 6 to revive for two chapters before it increments down to 5 or higher.

REC Characters
Tomomo (Sweet Eater)
Tomomo, Store Manager
Yuki, Flying Castle, Star Breaker, NoName, Hoshino Reika
Suguri, Hime, Sora, Marc, Kai, Sherry, Sora (Military), Miusaki, Yuki (Dangerous), Suguri (Ver.2), Mira, Islay, Sumika, Ellie, Marc (Pilot), Alicianrone, Arnelle, Hime (Moonlight), Malt
Peat, Seagull

Passive Changes

Some characters have had their passives adjusted in Co-op Mode.

  • Chicken, Robo Ball, Seagull, and Mimyuu lose the same amount of Stars on KO as everyone else.
  • Shifu Robot now revives after 1 turn instead of instantly, and starts and revives with 2 HP.
  • Shifu Robot has an additional Burn Out passive: Gain a stack of Burn Out after you revive. Recovery is delayed for 1 turn for each stack.
  • Kae no longer gains -1 DEF when attacking.
  • Sora (Military) has an additional Burn Out passive: Gain a stack of Burn Out after you revive from a battle KO. Recovery is delayed for 1 turn for each stack.
  • Sweet Breaker now gains +1 to ATK, DEF, and EVD if the opposing unit is inflicted by Melting Memories.
  • Miusaki now takes no more than half her max HP in damage when defending (rounded up).
  • Tequila will not summon Pirate Crew Members on  Encounter panels.
  • Fernet (Noble)'s passive applies to enemy units instead of other players, and will steals stars equal to the player's level.
  • Shifu's wins passive does not apply to KO's achieved by Robo Ball encounters or Robo Pals from  Ideal World.

Passive Interactions

Other characters have mostly unchanged passives, but have unique interactions with the various different systems in Co-op Mode.

  • Flying Castle can counterattack when landing on a  Boss panel, even if it attacks second.
  • Star Breaker, Cuties, and Hoshino Reika do not have both types of norma checks enabled, and cannot personally redeem their restricted norma type for the team.
  • Tequila's +1 ATK per damage taken passive does not stack with the Avenger role, meaning the player will only receive +1 per HP lost, not +2.
  • Natsumi's same-panel passive will trigger with any unit as normal, but only players will receive the healing effect.
  • Mira's Binding Smoke passive will not affect players.
  • Islay and Chris's no-challenge passives applies to enemy units instead of other players.
  • Suguri (46 Billion Years)'s damage-doubling passive now applies to different cards, depending on their co-op effects.
  • Shifu's battle damage passive applies to the special Robo Ball encounters when fighting M10 Robot.

Field Changes[]

As previously mentioned, special boards are available in co-op. The board selection depends on which boss and difficulty the player chooses.

Board Panels

Most boards in co-op feature a special panel for the boss to start the game on.

Icon Name Effect
PBoss Home.png Boss Home Panel The boss starts the game on this panel. Functions as a  Boss panel when stepped on.

A-Practice Field.png

When playing on a board that does not feature a Boss Home panel, the boss starts the game on the rightmost end of the lowest row of panels. This location is based on an orthogonal view of the board, rather than the player's in-game view. For example, when playing on the Practice Field board shown to the right, the boss starts the game on the lowest bonus panel.

Field Events

Although most field events are replaced with mixers, Co-op Mode features 1 unique field event designed to make the boss harder the longer the game progresses. This field event is permanently active and cannot be turned off.

Name Chapters Effect
Random  Boss panels spawn around the board. The amount of spawned panels increases as the game progresses. This effect lasts for the duration of the Chapter and does not affect  Home,  Warp, or  Warp Move panels.
At the start of chapter 40, effect frequency increases from every 2 Chapters to every Chapter, and  Boss panels spawn everywhere except for  Warp and  Warp Move panels.

The Boss EncounterBoss Encounter
When Norma level 4 is achieved for the first time by any player, all PEncounter.png Encounter panels on the map will be replaced with PBoss.png Boss panels. While Boss Encounter is in effect, any player who stops on a Boss panel will battle the Boss unit. This event will continue until the Boss unit is defeated.
event that occurs in other game modes does not occur in co-op, since boss panels spawn through Terror instead.

Home Sweeper

 Home Sweeper is a special Hyper card played by the boss if it hasn't been defeated by chapter 40. Home Sweeper permanently removes home markers and  Home panels, allowing Terror to replace them with  Boss panels.

Card Changes[]

Many card effects have been changed for Co-op Mode. While some of them have been completely reworked, others have simply been adjusted to only work on the boss and its minions instead of other players, and vice versa.

Standard Cards[]

Card Changes
Will only affect opponents.
Effect is now "If you do not suffer KO in this battle, cancel next Boss card activation. Can only be used against the Boss."
Will only affect players.
Cannot be triggered by opponents.
Cannot be triggered by opponents.
Now a Boost card, and effect has been changed to "When stopping on your Home panel, discard this card and gain 5 Stars. This card is discarded upon use."
Can only target opponents.
Effect is limited to 1 active stock total (instead of 1 stock per player). Players do not take damage from the effect.
Cannot be triggered by opponents.
Effect is now "Boss and all active minions gain -1 ATK in their next battle."
Is now Norma 2. Gives +10 stars and +1 Win instead of +50% stars.
Cannot be triggered by opponents.
Effect is now "While in effect, players cannot be forced to lose stars."

Hyper Cards[]

Card Changes
Now makes the user fight the Boss. Can now be used at any level other than just Affluence (4). Grants -X ATK to the Boss, where X equals the Affluence level. Steals (X) x 20 stars if not KO'd.
Now deals 1-2 damage. Will only affect opponents.
Can only target players.
Gives +1 ATK and +1 DEF for every 10 stars spent instead of every 20. Will not consume stars past the amount it takes to get to +9 ATK.
Effect is now "When used, the Boss will skip its next action." (Boss will still move but won't play its next card)
Effect is now "Prevent star loss caused by a Boss or its minion. Discard this card if this effect is triggered."
Damage-dealing effect will only affect opponents. When placed, visible to all players.
Will only affect opponents. (Boss won't move but will still play cards)
Now applies +1 ATK to players and -1 DEF to opponents. Only lasts 2 chapters.
Will only affect players, and no longer gives stars.
Cannot be triggered by players. When placed, visible to all players.
Now a Battle card, and effect has been changed to "During this battle, the opponent gains the following effect: All dice rolls will be 1."
Will only target opponents. Now deals damage instead of reducing HP, and will deal a maximum of 5 damage (down to 1 HP).
Effect is now "Summon 2 Pirate Crew Members to fight a random enemy. Enemy goes second."
Now heals two HP.
Will only target opponents.
Gives -2 REC to players KO'd by its effect.
Damage will only be dealt to opponents.
Effect is now "Randomly deal your current max health in damage to either yourself or the boss."
Effect is now "Gain Level x 10 stars." Stars will go to the players even if triggered by an opponent.
Now ends on KO.
Now a Boost card, and effect has been changed to "Effect Duration: 2 Chapters. Choose an active player. Robotic units will fight in battle on behalf of that player. These robotic units will gain +1 ATK."
Stopping effect will only affect opponents.
Now deals 4 damage. Cannot be triggered by players. When placed, visible to all players.
Can only target opponents.
Binding Smoke will only affect opponents.
Deals 5 damage to targets instead of directly KOing them. Will only affect opponents.
Cost is 40, and its effect has been changed to "For each KO'd ally, deal 3 damage to all enemies."
Will only affect opponents.
Cost is Stars / 10, and its effect has been changed to "Scramble boss' current hand order. Inflicts Melting Memories to all enemies. Effect Duration: 3 Chapters. Effect expires on KO."
The cards that are able to be generated are now determined using their co-op effect.
Can only be used as a Battle card, and its effect has been changed to "Opponent fights Shifu Robot instead. Can only be used against the Boss."
No longer gives stars.
Now allows the player to always attack first in battle, in addition to its usual effects.
Effect is now "Gain +1 Rage Counter and go into Raging Mode. During Raging Mode, gain +X/2 ATK and +X/2 EVD rounded up, where X is the number of your Rage Counters. At the start of your turn, lose 1 Rage Counter. Raging Mode ends when Rage Counters are 0."
No longer steals stars. Cannot be triggered by opponents.
Cannot transform  Boss panels.
Can only target opponents.
No longer applies the Santa's Gift debuff.
Now deals the user's max HP as damage to the enemy.
No longer grants immunity to being targeted by Boost cards. Star-stealing effect will only affect opponents.
Now an Event card, and effect has been changed to "Effect Duration: 3 Chapters. Whenever a player gains stars from a panel or battle KO, they gain an additional Lvl x stars."
No longer grants immunity to being targeted by Boost cards.
Effect is changed to "Receive 2 Pudding cards. These cards are removed from game upon use or discard."
Will only affect opponents.
Can only target opponents, and now steals stars equal to 10 times the user's level.
Effect is now "During this battle, gain +1 ATK, +1 DEF, and -1 EVD for every two cards your allies are holding."
Now makes the user fight the Boss.
Will only affect opponents.
Can only target opponents.