Fuecoco is a bipedal crocodilian Pokémon with a mostly red body and a white stomach and face. It has yellow patches on its stomach and tail. It has black eyes, triangular nostrils and in its mouth has three teeth with one in the upper jaw and two in the lower jaw. It has stubby arms, large feet with two black toes and it has two orange tufts on its head. Fuecoco has black eyes and triangular nostrils, and its mouth has three teeth, with one in the upper jaw and two in the lower jaw. It has stubby arms and large feet with two black toes on each foot. Fuecoco has yellow square scales on its stomach, back, tail, and the soles of its feet. These scales are warm to the touch, although they can become heated. The scales absorb external heat, such as from warm rocks where it lies on, to be turned into fire energy.
Fuecoco is laid-back that does things at its own pace.
Fuecoco is the second crocodile-like Starter Pokémon, after Totodile.
Fuecoco shares both its Japanese and English voice actors with Goh.
In an interview with Roy's JP voice actress Yuka Terasaki, she says "Roy and Fuecoco have a friendship between men", possibly implying that Fuecoco is male.