In a review with Daisuke Amaya, the question about Igor's origin was asked. Pixel stated that while Igor claimed that he must protect professor eggs, this professor wasn't the Doctor nor Professor Booster, (and of course not even Dr. Gero) and is never seen in-game. The way the professor and Igor are related is in the way that Igor was a Mimiga who found himself lost. When the professor found him, they grew close; Igor loved and respected the professor. Before meeting Igor, the professor performed tests and cared for the Sky Dragon eggs alone. After time passed, the professor died of old age, and Igor did his best to continue his masters' work in performing tests and caring for the eggs. Later on, Igor ate a Red Flower for an unkown reason, and thus became the monster Quote fights.