Watch it in action
🔐 How it works
- Locks appear on the colored boxes at the bottom, and keys appear on the marble boxes at the top.
- Locked Pallet keys are universal — they are not color-matched like Locked Gate keys.
- A key simply opens the next valid lock based on the level's fixed order; keys collected early wait in a queue and do not vanish.
- Unlike Locked Gate which blocks movement, Locked Pallet blocks cleanup — you can still drop marbles, but colors cannot be cleared.
Pro tip
Clear safe unlocked boxes first for conveyor space and grab keys before a jam. Do not drop a big stack into a locked color — a nine-marble box becomes a disaster if its target is locked. Keys are traffic control, not an emergency button: before dropping one, check which column is closest to showing a locked box and, if needed, clear a small box to let a better lock move into place.
