Raid Run

Raid Run is a game mode in Cookie Run: OvenBreak, introduced in The Long Journey for Life update. In this mode, players will team together or play alone to fight a monster as fast as possible to get better rewards. There are 3 Raid Monsters: 2 appear 3 days a week and 1 appear only on Sunday.

Raid Preparation
Before starting a raid, you can give skills to your unlocked Skill Helpers, there's 3, Pigleaf, that you'll unlock when finishing successfully a raid 3 times, it has a cap at lvl 9, Pupleaf, that you'll unlock when getting an A+ or higher rank one time, it has a cap at lvl 11, and Bunleaf, that you'll unlock if you have at least one Raid Skill at lvl 11 or above, it has a cap at lvl 13.

Monsters
To fight the monsters, you mainly need to use Skills, but there are other ways to fight the monsters, like the attack Jellies that appear through the stage. Other way to deal damage to the monsters will be the Combos, that will activate every 50M points for each teammate, and can stack up to 50 times, with more damage with each stack. The Combo will be reset when colliding into and obstacle or falling through a hole. Team Combo can also be used to deal damage. Team Combo will need an amount of team points to activate, this amount is every 4,500,000 points in Team mode.

Team Missions
Team missions will be presented while running. They will require you to do a specific task like collecting Jellies or destroying obstacles, and you need to complete them in 20 seconds. When completing a team mission, the boss will get tired, and you can run for a while without obstacles and many Skill Energy Jellies will appear. If failing to complete a team mission, the boss will get angry and will either attack all players or heal themselves. These also exists in Solo Mode.

Team Mode
When reaching A rank or higher, you will unlock Team mode. In Hard mode, there are 10 players instead of 1, and the boss HP and rank time is much higher. Team mode will have a more difficult stage design. You can play with friends/guildmates or with random players. When playing with random players, the matchmaking will match you with other players with the same Skill levels. You can change your Combi before matching with others and when the raid preparing is in the ready stage, where you can also see the other players Skills and Combis. The game will start when everyone is ready.

Ranking
The ranks are based on how fast you defeated monsters, and will give better Raid Chests and rewards with better ranking.

Raid Ranks
Each raid monster will have it's own Ranks, where you can get rewards based on how fast you defeated the boss. The ranks range from F rank, which you won't get anything, to SSS rank, which will give a Title.

Leaderboards
The leaderboards ranking is based on top % of how fast you defeated the monster in Hard mode with comparisons to other players. Based on the overall rank of all your monster ranks in team mode, you will get rewards at the end of the Raid Season.

Season Pass
The Raid Run Season Pass will give all players +1 additional level to the Main Skill (up to Lv. 11) and can give up to 8,000 Crystals based on haw many raids you completed (up to 5 raids).

Raid Chests
When defeating a monster, you will get Raid Chests based on your ranking. a normal Raid Chest takes 1 day to open and a Special Raid Chest will take 10 days. You can get from Raid Chests Coins, Crystals, Magic Powder, Sugar Crystals and Skill Gems based on the boss that you got the Chest from. You can open a Raid Chest immediately with Raid Keys, that are usually available only through packages. A Special Raid Chest requires 3 keys, it also have a chance to give you Rainbow Cubes. All Raid Chests will disappear at the end of the Season.

Skills
Main article: Skills Skills are what you will mainly use to attack the monster, but can also be used for support like healing, raising the team's attack, and decreasing the monster's defense. You can equip 2 Skills: one locked to the Cookie you are using, and you can equip other Skill if it's above level 7.

Monster Index
The Monster Index will give information about the monsters available, with more information unlocked every 3 and 6 successful raid completions. Each raid monster will also have it's own tasks to complete, and you can get rewards for each raid monster based on the task completion of the monster.

Tasks
Each Raid Task is separated for each monster Raid Tasks=

Index Completion rewards
You will also get rewards based on overall index completion.

Trivia

 * Raid Run seems to take some inspiration from the Event Mode Spelunking Expeditions, this can be seen as both modes feature a variety of bosses to fight, alongside fighting said boss as a team.