This one is thirty minutes long and it does not waste a second of them. It's the Toei Anime Fair short, built to be a snack: Koenma gets snatched, King Enma's seal goes missing, and the whole Spirit Detective crew mobilizes before you've settled into your seat. Yusuke leads with the same brawler's swagger he brought back from the dead, Kuwabara talks more trash than he can cash, and Kurama and Hiei show up doing exactly what they do, which is make everyone else look slow. Garuga's shapeshifting gimmick turns the fight into a paranoia test, and the Spirit Gun payoff lands because the movie never pretends to be more than a very good excuse to watch these four go to work. Not canon, not required, still the purest hit of 1993 Yusuke you can get in half an hour.
Yusuke Urameshi has finally caught a break. After his death and subsequent resurrection as a Spirit World detective, he's earned the right to enjoy a normal summer vacation. That plan lasts about five minutes before Koenma, the young prince of the Spirit World, gets kidnapped by a dangerous demon, and everything goes sideways. Now Yusuke's stuck negotiating with criminals and dodging supernatural threats to recover the Golden Seal of King Enma, the only bargaining chip that might get Koenma back alive. It's the kind of mess that turns a simple errand into an all-out adventure, complete with the usual cast of allies, absurd humor, and fight sequences that escalate faster than anyone expects. The movie cranks up the action and stakes beyond the TV series while keeping that perfect balance between comedic banter and genuine danger. Yusuke remains his cocky, determined self, cracking jokes even as demons try to kill him. If you want colorful characters throwing around crazy powers and trash-talking their way through a supernatural crisis, this delivers exactly that energy.