author=Firefly84 Thanks for this map. It helps a lot.
I have earned 35 levels and 4 optional characters.
But for the left two the text said donations insufficient!
Don't tell me there's a fourth EXP-Orb.
Yep, it was no problem; this dungeon is pretty tricky to navigate.
The Experience Orbs are items that level up your characters, and are not required for donations. One only needs to donate 100,000G to create an optional character. While play-testing my game, I made sure that once you obtain a specific new character you would not be able to obtain him or her again. If you have obtained each of the four optional characters, then all the pillars of light asking for donations should have disappeared.
I'm pretty sure there are only three Experience Orbs inside of Daedalus. Good job on finding them all!