Secret Mission is a limited-time event celebrating the third anniversary of LINE Game, alongside the LINE Game 3rd anniversary gift event. Players are given a gift with a hint for the event attached to it. Players are required to decipher the hint to complete the mission and obtain the CookieRunCrystal 3 for the day.

List of MissionsEdit

Day Goal Gift Mission Hint
1 Run 3 times 3 Lives Use it all up for a surprise!
2 Get 3,333 XP 3 Double XP Get me sooome XPs!
3 Run in Dragon's Valley 3 Energy Boost 40 Run in the hotttest place!
4 Get 3,333,333 points 1 Fast Start Set a lucky Scooore!
5 Get 3,333 coins 1,111 Coin 001 Triple this investment!
6 Run in Ghost Pirate's Island of Coins 3 times 1 Key Use the Key maaany times!
7 Run for 3 minutes 1 Cookie Relay Run for a looong time!


  • Each mission involves the number 3, which is the number of years for LINE Game to run, so you can predict how many times you need to do or how much you need to earn in order to complete the missions. For example, players are asked to earn 3,333 XP, and Dragon's Valley is the third episode in Cookie Run.
    • Some hints also repeat some letters three times, making this another hint on how many times you need to do something.
  • A new mission comes up every 11 a.m. (GMT+9).