• [Double Six] : In the main plot challenge, successfully defeat the boss [Stone Heart Ten] Weird Sand Gold, and use team strategy to unlock this important achievement.
• To maximize the success rate, the recommended team configuration is as follows:
-Group attack skill priority : Make sure that the combat skills and finishing moves of the four characters are group attack.
• Addition of auxiliary characters : bring a reliable shield character and nanny to enhance survivability.
• Dice Duel : The boss, Weird Sand Gold, will randomly select characters to roll the dice. The key is to seize the opportunity.
• Sequential use of skills : When rolling the dice in Weird Sand Gold, first release the group attack finishing skill, and then immediately release another group attack combat skill. This increases your chances of getting two tries.
• Dice trick : If the dice points are greater than the sand gold, the character will not be damaged, and the finishing move will be restored to full value after the end. Therefore, try to have at least two dice with a 6 at the same time.
• Achievement achieved : When at least two dice roll 6 at the same time, you will successfully unlock the "Double Six" achievement.
By mastering your team composition and combat strategy, as well as your patience and luck, you can easily unlock this achievement in the Shuangliu challenge of the Collapsed Star Railroad. Good luck, Star Traveler!