They didn't play it so we didn't see if it had an Emblem or not. The song was just kind of there.Honestly, that's what is kinda weird to me.
Haven't we already seen the Mach Rider theme from Melee in the Smash Direct back in August? Wouldn't they of tried hiding that if Mach Rider was actually gonna become a full-on playable character with his/her own emblem?