The Bosses of Nicktoons: Smash!

Discuss about the bosses here or the bosses you want:
Goola Monster (Chalkzone)
Ghost Bride (Hey Arnold)
Zim's house dog (Invader Zim)
Unagi (Avatar: The Last Airbender)
Plankton Mecha Krabs (Spongebob)
Nocturne (Danny Phantom)
Chock Chock (Jimmy Neutron)
Reptar (Rugrats)
Robot Guacamole Monster (El Tigre)
Dennis (Spongebob)
Anti-Fairy Giant (The Fairly Oddparents)
Slime-Inka