50 levels. Pokémon was once translated as Pokémon Go has other common unofficial translations as Pokémon, Pokemon, and Pokémon. It is a series of games developed by GameFreak and Creatures Corporation and published by Nintendo, and is a major part of the Pokémon media works. Onion Swimmer can learn Meteor Blitz at level 50, according to the information, Onion Swimmer is a Pokémon Pokemon, this Pokemon reaches level 50 will complete the hyper-evolution and can learn the Meteor Blitz skill. After learning this skill, the pet's damage can be greatly improved, and the combat power rises.