When Captain Pollution prepares to enter the island with the army and Blight asks after him, Hoggish Greedly (excluded from both halves of the episode) is visible with the other villains behind Blight's shoulder.
At the end of part 1, Captain Pollution trapped the Planeteers in a circle of fire, but in the beginning of this episode the Planeteers escape from him before he was able to trap them.