Hahaha, this game is amazing and so fun!
Everything, from the art-style, to the voice-acting, to the punching bag when you parry, to the self-image of the punching bag. So extremely fun and well polished! The only thing I'd like to suggest for a potential improvement/ motivator for the player is that, if the boxer misses and loses Drive, then perhaps hitting the punching bag again could increase it slightly?