Honestly, that's the predominant aspect of Yosumin Live!: it's passivity. It's a very casual puzzle-like game that can slowly sneak up on you with a hidden complexity. It will not be fun for all players and even fans of the puzzle genre may be left scratching their heads. Given a chance, it may win you over with its cheerful visual style, sound effects and surprising depth. Giving it that opportunity, however, is probably going to be more effort than most players deem worthwhile.