He is the exact appearance of Aladdin but has darker colors.
He is rude and cruel and enjoys taunting others and making people miserable. And he is also known as erudite, violent, ill-tempered, lion-hearted, atrocious, loathsome, abusive, discourteous, determined, insane and negative.
Chaos created him because he believed that Fate had declared that Aladdin would always win, and he wanted an evil twin trope to see who would win. Chaos transports them to the center of Agrabah where the Evil Aladdin knocks the real one off a building as he begins terrorizing the city, throwing tomatoes at two of civilians. When the two Aladdins fight again, Genie intercepts them, so Evil Aladdin summons his own Genie to fight him. Aladdin then defeats Evil Aladdin. He is eventually erased from existence.