Aramzedo is a collector of rare life forms. He has a big spaceship filled with Pack-Bots.
He kidnapped three of the Inuwashi Gunjin. When the Turtles and the Gunjin's Leader went looking for them they were captured by a Pack-Bot and transported onto his ship to join his collection. They however managed to escape and were sucked into a Dokepal stadium. They faced an army of Pack-Bots but Raphael goaded Aramzedo into fighting the battle himself. Aramzedo agreed to release all of his collection if they could defeat him in combat. He faced them in a giant Pack-bot but the Turtles managed to trick Aramzedo into ordering his Pack-Bots to collect himself. Upon his defeat he agreed to help the Gunjin free his collection and return them to their home planet in exchange for his own freedom.
He is similar to the Marvel Comics villain The Collector.