Earth. A beautiful planet where humans live in harmony and peace. Some of them live the normal life while others dedicated themselves into protecting the planet they loved. But what if there were 8 Earths and what if they merged into one?

In a distant planet, a shadowy figure can be seen searching for something and after a long search, he finally found it: a magical staff called the Staff of Dimensions.

"At last, the Staff of Dimensons is finally here!" He exclaimed.

He grabs the Staff and tested it's powers and it seems to be working.

"With this, I can finally open a rift to other dimensions. Hahahaha!" He said.

Then, his minions finally arrived on the planet.

"I see that you've finally found the Staff of Dimensions, Master." His servant said.

"Yes. We can finally begin our invasion of the 8 Earths." He exclaimed

"Then, the preparations are complete." His servant said.

An army appeared in front of them.

"Now, I shall use this staff to open a rift to the Eight Earths." He said.

He then activates the staff, which glows white for a few seconds, before a portal appeared in front of them.

"Go, my servants! Lay waste on the Eight Earths." He ordered his servants.

"Yes, Lord Shadow!" His servant obeyed.

Then, they went through the portal and after that, the portal disappears. Meanwhile, in another planet, a blonde man can be seen sitting in a throne, observing the Eight Earths, until he noticed something's wrong...

"W-What's this?" He was curious as to what happened.

He took a closer look and that's where he found out that Lord Shadow's alien army had invaded the Eight Earths.

"Those are...Lord Shadow's army!" He was shocked. "How was this possible?"

We then saw footage of Lord Shadow's army wrecking havoc across the Eight Earths.

"This is bad...If this keeps up, Lord Shadow will conquer all 9 Earths under his rule... I musr do something..." He said.

Then he noticed something. He noticed that there's one in each Earth who fought bravely against the alien army.

"Perhaps, I could recruit these individuals...They might be the only one who can beat Lord Shadow and his army of aliens." He thought.

Street Fighter World

Somewhere in New Zealand, Ryu can be seen fighting Lord Shadow's alien army. He was overwhelmed by the alien's power.

"W-What are these aliens?" Ryu said. "They're a lot stronger than I thought..."

"What do you think of my new army, Ryu?" A voice can be heard.

"That voice..." Ryu was shocked upon hearing that voice.

Then, a purple energy appeared and it is revealed to be Bison.

"Bison? But I thought you were dead..." Ryu said.

"Yes, you DID kill me. But thanks to Lord Shadow, I am reborn!" Bison exclaimed.

"Lord Shadow?" Ryu was confused.

"Give it up, Ryu. I have brainwashed some of your friends." Bison said.

Ken, Chun-Li, Cammy and Guile then appeared as Bison summoned them using his Psycho Power.

"Ken! Everyone!" Ryu said.

"Ryu, you must join Shadoloo! Lord Bison will give you more power than you've ever imagined!" Ken said.

"This aura..." Ryu sensed something within them.

"Ah, yes. I have filled them with my Psycho Power. Now, they're a lot stronger than before!" Bison explained.

"It can't be..." Ryu was shocked.

"So, what's it gonna be, Ryu? Surrender to us and join with your friends or die?" Bison asked.

But then, a portal appeared behind Ryu.

"Hmm?" Bison was curious as to why the portal appeared behind Ryu.

The portal starts to suck up Ryu inside and after that, it disappears.

"Hmph! So he escaped..." Bison said. "No matter, he won't be bothering with us anymore."

Bison, the brainwashed fighters and the aliens all left the area.

Pokemon World

Somewhere in Johto region, May, alongside with her Blaziken, can be seen fighting off the aliens.

"Just what do these aliens want with me?" May asked. "Blaziken, Blaze Kick!"

Blaziken's right foot starts to set on fire and hits the alien surrounding them. But she was surprised that they survive from that attack.

"W-What? Blaze Kick did nothing to these things." May was shocked.

The aliens managed to hit Blaziken, which weakens him.

"Blaziken! No!" May cried.

"Why don't you just give up, May?" A voice can be heard.

Then, a green-haired boy appeared in front of her. His eyes changed to red, indicating that he was brainwashed.

"D-Drew? Is that you?" May asked.

"Yes. Who else would you expect?" Drew responded.

"What's going on here?" May said.

"Our boss wants you and any of Ash's friends dead!" Drew responded.

"What?!" May was shocked. "W-What are you talking about?"

"If I succeed, Lord Giovanni will be pleased." Drew said.

"Huh? Giovanni?" May was confused.

"Sorry, but this is the end for you!" Drew said.

Just before Drew could approach her, a portal appeared behind May.

"What?" Drew was surprised.

"Huh? What is this?" May was surprised as well.

Then, the portal sucked up May inside.

"Hurry! Go after that portal!" Drew commanded the aliens.

The aliens tried to go after the portal, but it closes before they can enter.

"Darn it! She got away!" Drew ranted. "I'd better tell Lord Giovanni about this..."

Drew and the aliens all exited the area.

Tekken World

Inside the Mishima Zaibatsu building, Jin can be seen talking to Lars, who is outside the building, fighting against the aliens and the G Corporation soldiers, through the phone.

"Aliens?" Jin asked.

"Yes. From what I've seen, these aliens are probably siding with G Corporation." Lars informed.

"That's impossible! Kazuya wouldn't go far as to recruit these aliens for their cause!" Jin said.

"Well, I did saw them fighting alongside the G Corporation soldiers so..." Lars said.

"What's the matter?" Jin asked.

"We could use some backup right now. These aliens are really powerful." Lars said.

"Alright, I'll send some backup right now. I'll even bring Nina there now. Prepare yourself." Jin informed.

"I'll be ready." Lars said.

He then cuts off the conversation. Nina then enters the room.

"You want me to help him in there?" Nina asked.

"If what Lars say is true, then he needs all the help we can get." Jin said.

"Where did these alien came from? And why would they side with G Corporation?" Nina asked.

"I don't know. All I know is that these aliens are dangerous." Jin responded.

"Alright, I'll go ahead and helps Lars." Nina said.

Nina then left the room to help Lars in taking down the G Corporation. But then...

"So, you're finally alone..." A voice can be heard.

"What?!" Jin was shocked.

Kazuya then enters the room, talking to Jin.

"Kazuya! How did you get in here?" Jin asked.

"While your soldiers are distracted by those aliens, I took it upon myself to go inside and confront you." Kazuya explained.

"So, you're controlling these aliens..." Jin said.

"Control? Hmph! I did not control these aliens." Kazuya said.

"What do you mean by that?" Jin asked.

"I'm afraid you don't have to know, cause I'm gonna end you and the Zaibatsu right now!" Kazuya said.

Kazuya summons the alien inside the room, surrounding Jin. But before they could attack him, a portal appeared behind Jin.

"Hmm? A portal?" Kazuya said.

The portal starts to suck Jin inside and after that, it disappears.

"Tch! That portal got him." Kazuya said. "No matter, as long as he's gone, I can finally destroy this place."

Kazuya and the aliens exited the building and after a while, the building exploded.

Marvel World

In New York, the Avengers are fighting against Loki alongside Lord Shadow's aliens.

"Whoa! What are those?" Iron Man asked.

"Loki must have recruited another alien race..." Captain America responded. "Thor, do you know what those are?"

"I do not know, Captain. I have never seen these species before..." Thor answered.

"You mean these aliens are entirely new?" Black Widow asked.

"That's a possibility. I'm not sure where Loki gets these aliens." Thor responded.

"Well, what are we gonna do?" Iron Man asked.

"I'll go after Loki. He must be here somewhere..." Thor said.

"Okay, we're going to defend the Avengers Tower from these aliens." Captain America responded.

Thor flies away from the group to find Loki and explain what's going on.

"Alright, team. Let's defend the Avengers Tower!" Captain America issued an order.

"Right." Everyone nodded.

The Avengers then began attacking the aliens that are coming towards the Tower. At first, they were able to gain the upper hand, but they were eventually overpowered.

"Ugh! These aliens are powerful..." Iron Man said.

"How do you like my new alien army?" A voice can be heard.

Loki appeared in front of them while Thor finds him and confronts him.

"Loki!" Thor called.

"Ah, brother. I see that you finally found me." Loki answered.

"Tell me. Where did you get these aliens?" Thor asked.

"Must I tell you anything, brother? It doesn't matter! Cause you're all finished right here!" Loki responded.

"We'll see about that!" Thor said.

Thor tries to attack Loki, but the aliens easily swatted him away, landing him back to the ground.

"Thor!" Captain America cried.

"These aliens...I didn't expect them to be this powerful..." Thor said.

"Do you see now? This is where you and your so-called Avengers are gonna die!" Loki said.

Loki fired a big fireball from the scepter at the Avengers, sending them flying to different places. He finds that Iron Man was the closest target among them and so decides to finish him off first.

"As for my first victim..." Loki said.

"Aagh!" Iron Man tries to get up but couldn't.

"Die, Iron Man!" Loki shouted.

Just before he could deal the finishing blow, a portal appeared behind Iron Man and sucked him up and after that, it disappeared.

"Damnit! I didn't expect that to happen!" Loki ranted.

He then turns his attention to the aliens.

"Find the remaining ones and bring them to me!" Loki issued an order.

The aliens obeyed and goes off to find the remaining Avengers while Loki stands on top of the Avengers Tower.