Any player would think that this monster looks similar to the Divine Armies, and thus would fight similarly, which isn't actually too far away from the truth. Still, the Jacqli Robo is slightly stronger than its white counterparts and also has access to a few additional moves: one is Trip&Fall, in which it stumbles face-first on the ground, raising a piece of rock that hits a party member once; and Eraser Horn, which hits all party members four times. This last attack is the one that makes it more dangerous than the Divine Armies, so it's advisable for the player to be careful whenever it uses it and to be on the lookout to guard against its attacks, as Luca is most likely to get downed quickly if the player messes up too much, so it's advisable to use the vanguards to revive her or have them on healing duty.
Additionally, due to its defenses and HP, most likely a single Song Magic shot won't be enough to defeat it, even if the player uses the best Songs Luca can use at this point, such as Lady Momoyo or Snowy Moonflower with a 14000% Burst, although the first will reduce its HP greatly, making it much easier to finish the Jacqli Robo off.
Trivia[]
The Jacqli Robo also appears as one of the enemies that must be defeated in Jacqli's Cosmosphere to continue advancing. The battle is fought just with Luca and Cloche in the party, but since it has been severely weakened, it should be no problem to defeat it.