Double Dragon 4 (IV) - Sonny - Longplay 

Yes sir! He was confirmed in Double Dragon 3: The Rosetta Stones. He looks like the same Sonny from the original Double Dragon that comes out with Willy at the end. Jeff (Mission 2 Boss) is supposed to be a former friend and training partner of sorts.

@@AllFlashNoDash Yeah, because I knew the guy in the first intro cutscene in the first game wasn't Jimmy Lee. Jimmy doesn't have blue hair.

@@ResurrectedElvenMonk I think that guy with the red suit and blue hair may have been a nod to the sega master system port. That's how he looks there.

@@AllFlashNoDash Agreed, though I have never played that one. My apologies.

You have to beat him in the tower mode.

No, it's an official sequel.

Mr. K from Renegade? He is supposed to be the third Lee Brother.

@@AllFlashNoDash He was a character created for Double Dragon 3: The Rosetta Stone arcade game to make it 3 players