Collection: SEGA - Streets of Rage - Mr. Y

"Mr. Y is one of the main villains from Streets of Rage 4. He is the son of Mr. X and the twin brother of Ms. Y, and one of the leaders of the new Y Syndicate organization."

"Along with his identical twin sister, the two took over the Syndicate Crime Organization after Mr. X's death, seeking to slowly rebuild their father's criminal empire over the long Ten Years Later. After doing secret experiments, the twins created a device to mind control people through music, and began organizing the new Y Syndicate to take over Wood Oak City." (Fandom)