The four brothers were in a Nightclub, a nightclub filled with gangs,mafias,etc.

Nobody ever dared to go there unless they had the guts to.

The Hamato Brothers, they were high-class mobsters, professional too. They were feared. Raphael, the eldest. He was big, huge. He was very scary, intimidating. Donatello, a very smart one. He was very manipulative, and he knows just what to do. Leonardo, he's controlling, cold. Michaelangelo, he was slick, but not as cruel as his brothers.