The Mystery Pass is the seasonal progression system in Merge Mansion.

When a pass is active, level 1 Mystery Pass items will randomly appear on your board when you merge items. You can merge these items up to Level 4.  The higher the level, the more Mystery Pass progress you gain when collecting the item. To collect, simply double-tap.

Purchasing the Super Pass or the Premium Pass allows you to claim more rewards, including exclusive decorations for the exterior of the Mansion, daily Gems, extra inventory space, and pets.

If you purchase the Mystery Pass right after the previous one has ended, you will also receive a Mystery Streak Chest as a reward. This chest contains extra Mystery Pass items, helping you progress faster!