When you win a game as Little Mac in Super Smash Bros. Ultimate, at the victory screen afterwards there is a black man with a towel draped over his neck standing behind Mac who says "Just like old times, eh?"
Who is this and what is the backstory? In the original franchise lore did he and Little Mac grow up together or something? Little Mac doesn't look older than 20s/30s, so what could "old times" be referring to other than their childhood?