|Fireflies||3 (Total: 3 - 2/1)|
|Target score||500 points|
|Level 663||Level 664||Level 665|
Level 664 is the fourteenth level in Rattle Dunes and the 183rd firefly level in Diamond Digger Saga. To pass this level, you must wake up 3 fireflies and score at least 500 points in 30 moves or fewer.
- This level is moderate.
- 1st board: Get water to the lava, then to the fireflies and exit.
- 2nd board: Get water to the lava, then to the firefly before the Lava bomb count down reaches zero.
The limits for the stars were reduced from 1.000 / 2,000 / 3,000 to 500 / 1,000 / 1,500