Well... It was not so bad, until I faced some strange developer decisions. At first battle with main enemy, where we are not suppose to win surely, it give 5 turns to deal damage. At my 3 pokemon with 14 lvl at this moment I not deal him damage at all, so surely lost and got H-scene.... But there is a text with all bosses, what loses mean to gain h-scene, so I think, what there is a way to win this battle and avoid losing after 5 turn.... but game not give a single info about it, not item, not any pokemon not help, not npc talks not help, so I simply go next. And the second strange boss battle, with invisible Youkai, what not affected by any damage type, only for some control such as sleep or Paralyses, but still not taking damage even after with this states, and waiting 30+ turns, trying healing my pokemon not help at all. Game again not give any info, how I could beat it.... I not say about items, needed to clear obstacles at map. If Axe could be obtained by beating boss in main story go, a Light for removing darkness clouds.... game give 1 hint at 1 npc at place behind 2 trees, what you could see after obtaining Axe, but not specify, where it exactly.... So you could easily miss some important info simply because miss or not want to go at start of game and trying clear places, what not be reachable before....
So I don't know, it's bug or developer decision, but... I not like to play, when I simply don't know, it was suppose to go that way or not.