He won’t get boo.

A boozed-up karate expert in Japan shattered the jaw of a worker dressed as a ghost because he got startled at a haunted house — then took the spooky theme park to court and lost, reports said.

The suing sensei claimed it was simply a “reflex” when he landed a kick to the face on a worker who had frightened him at the Toei Kyoto Studio Park in 2011, the Sankei newspaper reported last week.

During a 13-year legal battle, the injured “ghost” won a $68,400 settlement from the karate pro as payment for his broken jaw in 2015, the paper reported.

But the half-cocked high-kicker — whose name has not been released — later filed a lawsuit claiming the park was partially responsible for the attack because it failed to train staff to prevent attacks by scared visitors, according to the outlet.

In the lawsuit, he claimed the park didn’t “inform customers that humans were playing the role of ghosts” and demanded it pay 70% of the settlement, the paper reported, according to a translation by the South China Morning Post.

He also argued that the theme park should have prevented him from entering the attraction because he had been drinking, according to InShort News.

But the Osaka High Court ruled against the karate master last month, saying the kick was an overreaction that went “beyond the scope of a reflexive action taken out of sheer fear,” the outlet reported.

“It is difficult to find any justifiable motive or logical rationale [for the attack],” the court stated, noting the park isn’t liable.

“While it is true that the aim of the staff portraying the ghosts is to surprise customers, this is done with the understood principle that the haunted house is something that can be safely enjoyed,” the court reportedly wrote.

The karate expert had entered the haunted house — where several samurai-themed Japanese movies have been shot — holding hands with a co-worker.

In his failed lawsuit, he also claimed there should have been a “physical barrier” between the “ghosts” and the guests.