Hitmonchan's appearance is very similar to a human, when compared to other Pokémon. Its skin is a light brown color. It wears a purple, skirt-like attire and bright red boxing gloves. Its feet are also a purple color, giving it the appearance that it is wearing shoes. Its enlarged shoulders appear as large shoulder pads. The very top of its head is separated into five sections, and its face has visible eyes and a mouth but no nose.
Hitmonchan can have one of two abilities, Keen Eye or Iron Fist. Keen Eye is an ability that will prevent any accuracy loss. Iron Fist is an ability that powers up any punch move by 20%.
Hitmonchan utilize punching moves to the fullest, far more than any other Pokémon. Its punches can be so quick that it is possible that they are not able to be seen. Hitmonchan can learn all three elemental punches which are strong against elemental Pokémon that are weak against them.
Hitmonchan's Japanese name is a reference to a boxer named Hiroyuki Ebihara.
Little Mac from the game "Punch-Out" weighs 107 lbs., the same number as Hitmonchan's Pokédex number.
According to Pokemon Red and Blue, it can fire punches invisible to the human eye. This would mean that Hitmonchan can throw a punch at 38146 mph.
Hitmonchan's English name is derived from the words "Hit", "Monster" and the last name of film star Jackie Chan, the same as how Hitmonlee is derived the same first two words and the last name of Bruce Lee. It's Japanese name, Ebiwalar, is derived from the world champion boxer Hiroyuki Ebihara.