The Vampires appear in Episode 10. Stardust summoned them in order to kill Naughty. A Unibear falls victim to the Vampires and is killed. Stardust arrives and talks to the Vampiricorn, asking him to kill Naughty. The Vampiricorn agrees, but unknown to them, Naughty watches the whole thing and decides to kill Stardust and the Vampires in revenge.
The Zombears are summoned, and have the intelligence to know how to use guns. The Vampires are all over the island, but they don't attack the bears. Naughty goes on a killing spree, and kills several Zombears, Vampires, and normal bears. The normal bears come back as Vampires. The Vampiricorn is killed multiple times, but is ressurected. Stardust himself is killed, but he too comes back, but as a Zombear known as Ghoul Stardust. There is one final battle at the Disco, and all the bears are killed by Naughty Bea, who returns to his cabin.