Dorado

Dorado is a Heavens Arena's fighter and an anime-only character in the 1999 anime adaptation.

Appearance
Dorado is a red-skinned bald man with various tribal-like tattoos on his body.

Heavens Arena arc
Dorado is Killua's first opponent on the 200th floor. His weapon is a double-headed spear. At the beginning of the match, he gets the upper hand and is able to send Killua flying with some powerful blows but Killua reverts to using his assassin techniques and kills him in one hit, breaking his spear in the process.

Nen
Dorado is a Conjurer and he uses his ability to extend the range of his spear.

Trivia

 * Dorado's appearance is very similar to Darth Maul from Star Wars.