In the Robotics Lab of the Cleo Museum, there are a collection of Robots, One that looks like Robby the Robot ("Forbidden Planet","Lost in Space" TV series, etc.) - It even says "DANGER!" There is another robot that was obviously inspired by "The Transformers", and another which looks like the android in the Science Fiction classic "Metropolis" (1927). Also, There are two robots that play "Rockem-Sockem Robots" with each other).