Live and Not Learn / So Mature / Robo-Gas / Chez Corny Gus and Wally have a new and very important mission: build a protective orb around an extremely unstable quasar. After they made the orb as best as possible, they just realize the door knob is missing and leaving them stuck inside the sphere as well. When Yay-Ok's robo-ripener hits Wally, it gives him a mustache, which means he is now the more mature monkey. This makes Gus jealous, especially when the new facial hair causes Monkevil to start falling in love with his brother. The monkeys realize Yay-Ok is holding in all his robo gas. The monkeys ruin an old friend's career.