3 years before the cartoon first premiered on television, there was a pilot for The Bluffers titled The Duffers. However, in the pilot, it wasn't animation. All the characters were puppets. In the pilot, the main characters weren't called Bluffers and were called Duffers. In the pilot, Zip wasn't blue. Zok was light blue. There was a character in the pilot who wasn't in the cartoon called Hairy Harry and was a gorilla. Clandestino wasn't a human and was a troll with untidy ginger hair, purple skin and big yellow eyes. Clandestino's robot butler Sillycone and his watchdog Sillycone weren't in the pilot.