Last month, it seemed that Sega decided to add in various theme songs of their classic games like Quartet, Space Harrier, etc. and for those playing Groove Coaster Zero on their IOS devices like I already have, you get the Cosio arrange of Quartet theme. Hmm, not as good as the Project Diva Arcade remix of that theme though but at least you can enjoy that arrangement whenever you go via Groove Coaster Zero in addition to enjoying it in the arcade via Maimai Plus.
Also, while Taito was showing their arcade version of Groove Coaster series at JAEPO, what the hell was Sega doing there? Well, I'm sure Sega was like showing off something else I don't even know of.