Tepig is a quadruped, pig-like Pokémon that is primarily orange with black and yellow markings. It has oval eyes, a ruddy pink nose, and a thick stripe of yellow over its snout. The upper portion of its head is black, and its long, pointed ears are positioned closely together on the top of its head. Tepig has short legs with black front feet. A black band covers its lower back and rear. Its curly tail is tipped with a ruddy pink sphere.
Tepig is a nimble Pokémon capable of blowing fire from its snout. It will cloak itself in these flames in order to use its signature move, Heat Crash. However, it will spout thick, black smoke when ill. Tepig will roast berries before eating them, but occasionally gets overexcited and burns them.