|Fireflies||5 (Total: 9)|
|Target score||1,000 points|
|Level 39||Level 40||Level 41|
Level 40 is the fifteenth and last level in Quartz Quarter and the 18th firefly level in Diamond Digger Saga. To pass this level, you must wake up 4 fireflies and score at least 1,000 points in 22 moves or fewer.
This level could be made without releasing any Firefly in the first two boards. The required number is in the third board alone and will all be released at once.
- 1st and 2nd board: Use given Color Bursts and then clear the rest to exit quickly.
- 3rd board: Use the Magic Orb and given Color Bursts to release all Fire Flies.
- A previous version had completely different board layouts with four depths.
- Later the layout was changed to look like the current one, but with only one firefly in the third board, now there are five.