This boss can be extremely strong and fierce. Its attack consists of 6 extremely strong Poison clouds. These attacks can travel slow but very far. Fortunately, the attack's AGI is very high, causing a long delay between attacks. The Bait strategy may help, but the boss can still approach the attacker. Using the Dodge strategy or the Hit and Run strategy with a melee character on the boss is also effective. Poison Charm 3s can also be used to reduce the chance of being poisoned, but don't try to rely on it, as the consequences of failing will usually result in death for the character with the charm, due to the massive damage being enough to kill a character under normal circumstances. Like the Red Gel Zombie, this boss drops 666 gold. It is recommended to use ranged attacks, especially the Sniper's Triple Poison 4.
Fun fact quoted from the Dan Ball forums: "The Boss shoots 6 clouds of poison. The poison does a damage of 6 per frame for a duration of 66 frames. So each cloud does a damage of 396. That should be survivable by some rangers, but somehow it appears that you can be infected twice." The same applies to the Red Gel Zombie, along with all other Poison type enemies.