I can't call this a "bad" game, but it leaves so much to be desired. Haruka's used incredibly poorly in this entry, often feeling like an object with little autonomy or choice, and Kiryu's characterization feels very at odds with the previous games. It's also a poor conclusion that really clashes with the messages of the last entry. In spite of that dragon engine funny and you probably shouldn't skip this one, to at least experience it for yourself once.