1 answer In most circumstances with a physical attacker, and even certain special assailants, Hyper Beam is worth it in Gen I. However, Hyper Beam is no longer worth it because you still miss a turn even if you KO the adversary. Porygon-Z is the only Pokemon you should consider using Hyper Beam on. While Hypnosis does work on Porygon-Z, Hyper Beam is easier to use.