If they survive long enough, they will cast Vanish on themselves. Edgar's Bioblaster is highly effective against them, as the Gobbledygook is weak to Poison, and Bio Blaster's damage is magical and thus will hit them even if they use Vanish. If the player confuses the Gobbledygook with the Noise Blaster, they may cast Vanish on the party members, rendering them immune to physical damage until hit by a magical attack. Several enemies in Zozo can use magic, so Vanish may wear off quickly, but while applied it is quite useful.