Kintoleski

Kintoleski is the fifth of the Dark Fall to attack earth. His skin is gold in color and he is the strongest of the Dark Fall. He likes to exercise and work out. His name comes from "kin", which is Japanese for "gold" or "metal" (and also a homophone for "muscle", "筋"), "kintore" is an abbreviation of "kinniku (muscle) training", and "suki" can mean "like". Hence, his name can be translated as "(I) like muscle training".

(Source: Wikipedia)