Clam-tron 4000 was first found on the beach, frozen in place after being rusted, and needed an oil can in order to move again. After feeling that he owed the Skylanders for helping him out, Clam-tron 4000 asked the Skylanders to gather clams so that he can convert them into pearls as a token of his gratitude. After the Skylanders gathered the clams, Clam-tron 4000 soon found out that he can now extract bombs from clams, having lost his gift of making pearls.
Later in the story, he told players that his 'father', General Robot, was even more strict during his childhood (only heard in the Wii version).
He appears to be able to swim, as in the Secret Vault of Secrets, he resides in an area that was underwater for most of the level.
He may be looking for advice or a wish, as he is found at the Oracle. Ironically, he is found in the Trial of Strength: Speed, when it would seem he would be much more fitted for the Trial of Strength: Power.