Red: When it locks eyes with an enemy, it will use a mix of PSI moves such as HYPNOSIS and CONFUSION.Yellow: Avoid eye contact if you come across one. It will try to put you to sleep by using its pendulum.Gold: When it is very hungry, it puts humans it meets to sleep, then it feasts on their dreams.
Prof. Lotus' Notes: Hypno's name is short for Hypnosis. However, it could also be derived from Hypnos, the embiment of sleep in Greek Mythos.