I couldn't finish 'em. Looks like this's gonna get complicated.
The Behemoth is a bonus boss from Final Fantasy Crystal Chronicles: Echoes of Time. It fights exactly the same as it did in Final Fantasy Crystal Chronicles: Ring of Fates, using a laser attack if the player is too far away to attack with anything else or is directly in front of it, a Fire spell if the player is not close to it and not in front of it, or a ground pound attack to knock players away.
Using a spell on it will flip it over on its back, at which point the player can attack its weak point. Overall, it is not a difficult bonus boss, and is one of the lower-leveled bonus bosses in the Library.
Behemoth is a beast mentioned in Job 40:15–24. In addition to mythological creatures, it is likened to elephants, hippos, rhinos, and bison. Metaphorically, the term behemoth denotes "an extremely large or powerful entity."