It took more than a year, but One Piece fans were finally able to see Luffy's Gear 5 transformation in anime form. Unlike Luffy's other forms, Gear 5 is a direct result of Devil Fruit awakening, which means that he can now fight without limitations. Gear 5 is considered to be the most ridiculous powers in the world, and it is a tad broken because it allows Luffy to turn anything into rubber. That being said, there are a few Devil Fruits that are capable of beating Gear 5.
Source：https://www.cbr.com/one-piece-devil-fruits-vs-gear-5-luffy/
