Blaziken is a bipedal, chicken-like Pokémon. The majority of Blaziken's body is red with accents of beige, yellow, and gray. Behind its head, there are beige, hair-like feathers that continue downward and surround its chest and abdomen. It has a small red face with a V-shaped crest on its head. Blaziken's eyes are semicircular with yellow sclera and blue irises, and its mouth is similar to hooked beak. It has featherless, gray hands with three fingers each, and three clawed toes that are not normally visible due to the shaggy, yellow feathers on the bottom of its legs. A female has a shorter mask and hair than a male.
Blaziken has strong, muscular legs that give it great lower body strength. This lower body strength helps its kicking and jumping abilities. Blaziken's wrists have gray wristband-like markings capable of producing a tuft of fire above them. Blaziken can also make flames spout from its ankles. This allows it to cloak its feet or fists, and it uses these abilities while practicing a form of martial art. These combined abilities allow it to use its former signature move, Blaze Kick. Its flames burn more intensely when it faces stronger opponents. Every several years, its old feathers burn off, and new, supple feathers grow back in their place.
As Mega Blaziken, its yellow markings become red, and it gains black markings on its upper legs and chest. Its hair-like feathers take on a wing-like shape and point upward, and the portion around its chest is rough around its shoulders. The crest on its head changes into a flat horn that curves backward. The fire it creates on its wrists can be longer as well.