[GrandComplete]

Speaking of Over Quartzer does any remember the unused original TM Revolution version of this song?

In this early trailer the OP sounds alot different from the finished product and that because this song was originally sung by TM Revolution and Shuta Sueyoshi. Before TM was replaced by ISSA, TM Revolution would then go on to sing next year Rider show Zero-One op "RealXEyez". Now no official explanation has ever been given but the simplest theory for why the last minute change happened is a simple case of wanting to cram as many Heisei references as possible for ZI-O. See Shuta Sueyoshi is part of the band AAA who peformed "Climax Jump" Den-O OP and ISSA sung Justiφ's Faiz OP. And they simply compensated TM Revolution by letting him do Zero-One OP. Unfortunatly this version of "Over Quartzer" is still unreleased to this day despite upcoming 50th anniversary CD set which actually contain several unreleased songs throughout the franchise.