Iguana is one of Matt Walmart's reptiles. He has a grudge against Matt for various reasons. One of which being Matt: Retreive arms from Iguana. He will not tolerate swearing and thus blocks every swear word with a splat. Iguana is the only reptile not to be named Francisco Armando Hernandez III, mostly because of this .Iguana has the most personalty out of any of the reptiles, and certainly seems to be the only one with a brain.