|Fireflies||4 (Total: 4 - 1/3)|
|Target score||250 points|
|Level 739||Level 740||Level 741|
Level 740 is the tenth level in Celestial Corridor and the 203rd firefly level in Diamond Digger Saga. To pass this level, you must wake up 4 fireflies and score at least 250 points in 33 moves or fewer.
- This level is nearly impossible. It is another top contender for the number 1 in the list of hardest levels.
- If you don't have a lucky first board that allows matches at the firefly it is useless to play because you must save the Magic Orb for the second board.
- 1st board: Make matches only on the top part of the board. Letting water to the exit too early is still almost inevitable. You cannot make matches at the firefly, and you hardly can charge the Magic Orb in time. But if you can - and need it, use it one tile above the firefly. This is a dumb designed board.
- 2nd board: This design isn't any better, always shuffling, but at least you cannot exit anymore! The magic orb will not fill again, so it is hopeless if you couldn't enter with a well filled Magic Orb.
This level is another top contender for the number 1 in the list of hardest levels.