Summary: The TMNT are capture by a high power demon that hates mutants of all kinds. The Reikai Tantei needs all the help they can get so Master Splinter calls for Usagi and Gen. Will they save the TMNT before it's too late?

Characters in it: Reikai Tantei and TMNT+ Master Splinter, Usagi and Genosuke

Disclaimer: I don't own anyone or anything but Nectar and his lizard people of Lizgardia

Usagi and Gen meets the Reikai Tantei

On mission in demon world, the Yu Yu Turtle gang is fighting a giant demon and that was overpowering them. The giant uses his club to try to smash the boys but the boys dodge the club.

"This giant ain't givin' up is he." Raph says dodging the giant's club.

"Nope, but he will." Yusuke says slyly.

The giant slams his club again and again. Yusuke catches it and holds it in place. The giant is in shock pulls it away but doesn't it see Yusuke under it. The giant looks around for him but sees the other 7 boys. Yusuke comes from the top of the club and with his hand powered up and punches the giant in the face knocking the giant out to the ground.

"Timber!" Mikey screams out as the other 6 move as the giant falls.

"Nice going, Urameshi." Kuwabara says.

"Thanks, that never gets old." Yusuke says gratefully.

"How are we getting the giant back to Spirit World?" Leo asks.

"Don't know, Leo."

Suddenly a mysterious person speeds by the 8 boys leaving a dust cloud making the boys cough. The dust cloud is soon gone and only the Reikai Tantei are with the giant. When the Reikai Tantei stops coughing they notice the turtles are gone.

"Where did the turtles go?" Yusuke asks the others.

"I don't know." Kuwabara answers as he is looking around for the TMNT.

"It seems that dust cloud was a distraction to capture the turtles." Kurama says.

"What! Who would want the turtles that bad?" Yusuke asks. "I thought we were on top of the demons' list and then the turtles."

"Obviously, we weren't the targets." Hiei says. "Only one demon would want the turtles because he hates mutants to the point that he wants to dispose of them."

"Who, Hiei?"

"Nectar, the demon lizard king." Kurama answers.

"Who is that, Kurama?" Kuwabara asks Kurama.

"He is a lizard demon that lives in the darkest part of Demon World."

"The darkest part! We need help to save them."

"Maybe Master Splinter has someone in mind." Yusuke says as the Reikai Tantei takes the giant to Spirit World and then went to the turtles' lair and explains to Master Splinter what happened.

"I see." Master Splinter says to Reikai Tantei. "I have two in mind they are suppose to come today."

Suddenly a portal opens and two figures come out that Reikai Tantei didn't recognized. One looked like a samurai rabbit and the other a rhino swordsman. The rabbit bows down to Master Splinter and the rhino does the same.

"Usagi and Gen." Master Splinter says to the two warriors.

"It is an honor to see you again, Splinter-san." Usagi says.

"Yeah, where's the food and some more comic books that fella was collecting?" Gen asks looking for Mikey.

"Splinter-san, where is Leonardo?"

"I'm afraid that they have been captured by demons but these young men are my sons new friends and need help getting my sons back."

"It is an honor to meet the turtles new friends, I am Miyamoto Usagi, a ronin." Usagi introduces himself and bows down and points to his friend. "This is Genosuke."

"Yusuke Urameshi." Yusuke introduces himself.

"Kazuma Kuwabara." Kuwabara introduces himself

"Shuichi Minamino but you call me Kurama." Kurama introduces himself

"Hiei." Hiei introduces himself

"Nice to meet you all, do you one of have some money or food on you?" Gen asks the Reikai Tantei.

"No, " The Reikai Tantei answers.

"Gen, we have no time for that we have to save the turtles from a demon." Usagi says seriously.

"Whatever, so where are we going?" Gen asks questioningly.

"To a place called Demon World." Kurama answers seriously.

"Demon World? What is some kind of joke?" Gen says in disbelief.

The Reikai Tantei groans annoyed. Usagi puts his hand on his head in annoyance.

"Genosuke, our friends are in the place that these warriors knows about." Usagi says seriously.

"Ok, I'll go for the right price." Genosuke says.

Yusuke growls annoyed. "We'll get you food when we coming back."

"I was hoping for money cause I want to go to this place the turtles call Las Vegas."

"Whatever, I'll get you money from my castle in Demon World." Yusuke groans annoyed as he and the others with Usagi and Gen go back to Demon World.

"Go luck, everyone." Master Splinter says waving good bye.

Meanwhile within Nectar's lair, in the darkest part of Demon World, the turtles are in a cage that was being carried by Nectar's men who are lizard people. Nectar's men carried the cage right to the throne area of Nectar's lair. Nectar looks like a black Gila monster with yellow stripes with the spikes of the thorny dragon lizard but has appetite of the Komodo dragon.

"So I find mutants in Demon World." Nectar says sinisterly. "The famous Ninja Turtles no less."

"Who are ya, lizard breath?" Raph asks angrily.

"I am Nectar the lizard king."

"What are we doing here?" Leo asks seriously.

"You are in my domain, a domain that hates mutants, ever since the Spirit Detectives met you four more mutants show up to Demon World to escape from Human World." Nectar answers angrily.

"Why do you hate mutants so much I mean what did we do to you?" Mikey asks Nectar.

"Silence! mutant scum, no more questions."

"Hey! I'm not mutant scum." Mikey says annoyed.

"You've been called worse." Raph says joking patting Mikey on the shell.

"True. Gruel from the Triceraton World called us worse."

"Silence!" Nectar screams at the TMNT. "Take them to arena."

Nectar's men take the TMNT to his arena. Meanwhile the Reikai Tantei, Usagi and Gen are getting to the darkest part of Demon World. They go inside and see the all of the demons were bigger and angrier here.

"This place reminds me of dark realm in stories I've heard." Usagi says to Yusuke looking around Demon World.

"Yeah, this isn't best to live for humans but there is a ruler here of all Demon World but he told me this part of Demon World is a bit more dangerous and the demon are little crazier." Yusuke says to Usagi.

"Yeah, I wish we get out here and let me go to the Las Vegas place." Gen says nervously.

Suddenly lizard men and attack the group with swords and spears. Yusuke and the others got into fighting stances and fought the lizard men. One of the lizards tries to stab Yusuke from behind while Yusuke was bumping two of the lizards' head together. The lizard charges at Yusuke and Usagi block the lizard and slashes him in the stomach knocking the lizard over.

"Thanks, Usagi." Yusuke says gratefully.

"You are welcome, Yusuke-san." Usagi says gratefully.

"Well, Usagi is another great swordsman unlike the fool." Hiei says slyly.

"Shut up, shorty." Kuwabara says annoyed.

"Come on, guys, let's save the turtles." Yusuke says seriously as they keep fighting the demon lizardmen.

Back to the turtles, the turtles are in Nectar's arena. Nectar's men pushes the Turtles out of the cage and soon Nectar comes into arena. He has a scythe that has staff part that was gold. The lizard people cheers for Nectar.

"Now people of Lizgardian, I will fight the mutants called the Ninja Turtles to battle of the death." Nectar says to his people.

The lizard people cheers. The TMNT were given their weapons. They start to charge at Nectar. Nectar soon blocks Leo's sword and Don's bo with his scythe and kicks both turtles toward the wall. Then Nectar blocks Raph's sais with his sword that he has at his side with sapphire hilt. Nectar trips Mikey with his left foot and throws Raph over with his sword with toward Leo and Don. Nectar picks up Mikey and throws Mikey toward his brothers.

"That lizard is fast." Raph says in shock.

"No kidding." Mikey says rubbing his head.

Meanwhile the Reikai Tantei, Usagi and Gen soon get to Nectar's castle, they see guards that left off of duty and they get into the castle and get to the middle of the court. The lizard guards spot them.

"You know I'm tired of fighting all these damn lizards." Yusuke says annoyed punching the lizard guard.

"I agree, Urameshi." Kuwabara says bumping two more lizard guards in the head.

"We must find out where the turtles are, my friends." Usagi says as they heard cheering.

"I believe we found where the turtles are." Hiei says looking toward the arena.

"We've got to get pass more guards." Gen says as more guards charge at the group.

"Let's not let them get in our way." Kurama says seriously as uses his rosewhip on the lizard guard.

Back to the arena, Nectar was beating up the TMNT badly. The turtles get up. Nectar comes near them. The turtles get into fighting stances. The attack Nectar again but Nectar blocks them again.

"How do we defeat somebody who's fast like Hiei?" Mikey asks as Nectar hits him toward the wall.

"Mikey!" The other turtles yell as they charge toward Nectar.

They finally knock Nectar down with their weapons. Nectar gets up quickly and knocks the other three turtles to the other side.

"Now, will kill this mutant!" Nectar says as bring down his scythe toward Mikey only for to be block by Spirit Sword and a regular sword.

"What!" Nectar says as Usagi kicked him.

"Guys! Usagi!" Leo says as he and Raph and Don go toward them.

"And Gen!" Raph says annoyed seeing Gen.

"Thanks, Kuwabara and Usagi." Mikey says gratefully.

"Welcome!" Kuwabara says gratefully.

"You are welcome, Michelangelo-san." Usagi says gratefully.

"Alright, Nectar, if you ever mess with our friends or I'll come kick your ass." Yusuke says threatenly to Nectar.

"I won't mess with the mutants, Yusuke Urameshi." Nectar says as the guys leave to go back to the TMNT's lair. They get to back to the lair and everyone starts to train with Usagi teaching Kuwabara some new sword moves.

"Good job, Kuwabara-san." Usagi says to Kuwabara bowing down.

"Thanks, Usagi." Kuwabara says gratefully to Usagi.

"Not again!" Mikey screams.

"What now, Mikey?" Yusuke asks.

"Gen stole my comics again."

"Gen did have some comics and a bag with…" Usagi starts to say but puts his hand on his face.

"Money!" Yusuke says in shock. "That damn rhino is good."

Everyone laughs.

The End!

Up Next: V Videogame Adventure 2