I wouldn't say it is too busy for a game. It just isn't a conventional option. Throw this into a LISA fan game, for example, and it would fit in perfectly. Someone's going to create an experience that will definitely be enhanced by the inclusion of this song. Just don't forget you have it when that person goes around asking for music to include his work.

I haven't played persona but if I were to guess music for persona I would say this tbh.