"Heeyah!"

BAM!

"YAAH!"

FLASH! FLASH! FLASH!

Ben and Gwen were currently training, this would help improve their skills in combat even more.

"You guys are doin' great! Keep it up!"

CHAKK! CHAKK! CHAKK!

FLASH!

Ben and Gwen destroyed as many targets as they could, they were training inside one of Mt. Rushmore's rooms in its plumber base.

"Soralis Eratanichia!"

KZZT!

"Let's go Diamond-hard and fast!"

CHAKK! CHAKK! CHAKK! CHAKK!

BEEP! BEEP! BEEP!

Soon the training for the day was completed, and the targets disappeared. "Great job you two, someday you guys will be as good as me." said a voice from a computer screen. It was Max, he was monitoring Ben and Gwen's training progress. And they were improving fast. "Oh yeah! We're killin' it!" said Ben as he high-fived Gwen. Then, he reverted back into his human form.

FLASH!

"That'll be all the training we can do today kids, I've got some personal errands."

"Sure thing grandpa, we can train by ourselves."

"Yeah, see you."

After Max disappeared from the computer screen, Ben and Gwen took the elevator. They went back up the upper floor, before its door opened again. Then, they left. "Agh, training is getting more and more brutal." said Gwen, "At least we're improving." replied Ben. "Yeah." agreed Gwen as she held one of her arms, it wasn't just magic she used. She also used her body to do physical attacks on the targets. Ben and Gwen needed to enhance their physical fighting skills as well.

Meanwhile...

A child was in his room, he drew a red star on the floor. Just then, he began uttering words that sounded like they didn't make sense. After that...

FWOOSH!

"Ahahahahahahaha!"

"H-Huh?! I-It worked?!"

"Yes, I am Lucifer. But you may know me by the more famous name the devil. Ahahahahaha!"

"I-I can't believe it worked!"

"Yes, and now you and the rest of the world will suffer for your foolish actions. Summoning me when you know full well what I can do, have you humans not learned anything? Oh well, it'll be all your losses once I enslave this world. Ahahahahahaha!"

"Uh oh..."

Meanwhile, Ben and Gwen were at the Mr. Smoothies closest to them. "Dosen't taste the same..." said Ben as he sipped on a blueberry smoothie, just then

FWOOSH!

"AHAHAHAHAHA!"

A huge burst of flames appeared. Then, Lucifer appeared right after. "Wh-What the-?!" Gwen said in shock, "I-Is that-" Ben asked in shock. But before he could finish what he was saying Lucifer interrupted with "Yes. I am Lucifer. But you all commonly know me as the "devil". Ahahahahaha!". "What do you want?!" asked Ben, "What do I want? I think it's pretty clear what I want. World domination! And its destruction! Ahahahahaha! But before I do both of those things, let's play for a little while shall we?" Lucifer replied.

"This game's over, Lucifer! It's hero time!" said Ben, before starting to select an alien from the Omnitrix. "Ahahahaha! Planning to use one of your aliens, Ben? Surely you realize that neither your transformations nor your cousin's magic will be enough to stop me. Ahahahahaha!" Lucifer mocked and laughed. "We're superheroes! And we have to protect this world no matter who threatens it!" replied Ben, before slamming on the Omnitrix.

FLASH!

White skin covered Ben's body, followed by black lines all across it. A small blue eye then appeared, before the Omnitrix appeared on his chest.

FLASH!

"Ghostfreak!"

"Ahahahaha! Surely you realize that an ectonurite will be ineffective against me. Its possession abilities only works on mortals, but I am no mere mortal. I am Lucifer, the most powerful fallen angel. Ahahahaha!"

"Dosen't matter, I'm still gonna kick your ass with my cousin!"

Ben quickly tried to possess Lucifer. However, he was able to resist him. "Fool!" said Lucifer, before spewing fire at him. "WHOA!" yelled Ben as he flew up to dodge it. "You need to "cool" off! Sonoris Bumbargos!" said Gwen, before making rushing water enter Lucifer's mouth.

SPLASH!

"Ack!"

Lucifer ended up coughing and choking a bit. Ben then unsheathed one of his hands' claws and swiped him in the face.

SLASH!

"Argh!"

Lucifer now had a gash on his face. However, he was able to make it disappear. Then, he spewed even more fire towards Ben and Gwen.

FWOOSH!

"WHOA!"

"AAH!"

"RRGH!" Lucifer growled, before summoning his pitchfork. He then rushed towards Ben and Gwen and tried stabbing them. "Whoa!" Ben yelled again as he was nearly hit. Then, he opened up his chest to let his tentacles grab on to the pitchfork and try to get it away from him. However, Lucifer simply disappeared along with it.

FWOOSH!

"Where'd he go?!"

FWOOSH!

"Huh?"

BAM!

THUMP!

"Agh!"

Lucifer reappeared right behind Ben, before punching him in the face. "Agh!" said Ben as he fell on the ground. While Lucifer was distracted, Gwen took the chance to tie him up with magic. -If only temporarily so that she would have time to do what she really wanted to do. "U-Urgh!" groaned Lucifer as he started to break free. But before he could do that, Gwen yelled "Paralutus!".

FLASH!

"Agh!"

Lucifer became paralyzed. But then, he made himself invisible. "He's gone again!" said Ben, "Try punching him or something! I think he may still be there, just invisible!" Gwen replied. So Ben tried that.

BAM!

"Urgh!"

THUMP!

Lucifer ended up falling on the ground. He wasn't invisible anymore. Ben and Gwen then came around him, ready to attack him again just in case. Ben grabbed Lucifer by his suit's collar before yelling "GET. OUT. AND NEVER COME BACK!". "This isn't over Tennysons, I'll return much stronger and with an army!" said Lucifer, before quickly disappearing. Ben and Gwen were surprised, Ben then switched back into his human form. "Well, that was... suprisingly easy." he said, "He said he'll return much stronger and with an army." replied Gwen. "I hope we can take on his army if he does return with it. I'm not sure I can deal with multiple Lucifers at a time. One was already hard enough, and we only won because we used our smarts." Ben replied back, Gwen nodded in agreement before she and Ben walked off.

That night...

That night, Ben and Gwen were sleeping inside the Rustbucket with Max. Max had done his personal errands for the day, and he, Ben and Gwen decided to spend time together like old times. However...

FWOOSH!

"Do you guys smell something... burning?"

"C'mon, let's check outside."

Once they did, they saw that the woods were on fire! "AAH!" Gwen screamed freaking out, just then

"Hello, Tennysons."

"Wait... -Lucifer!"

"That's right. I told the both of you that this wasn't over. And I'm going to take your grandfather with me as well to the underworld."

Lucifer had just threatened both Ben and Gwen that he would take Max along with him to the "underworld". Then, Ben secretly whispered something to Gwen.

"You guys distract and deter him while I jump them all fast! Pass this along to grandpa."

"Alright."

Gwen then whispered the message to Max, which he agreed on. Just then, Gwen said "You're about to have a "flood" of problems! Sonoris Bumbargos!".

FWOOSH!

"Ack-!"

Rushing water sprayed everywhere, quelling some of the flames that consumed the woods. They managed to make Lucifer and the other demons' fire breathing abilities ineffective for a bit. While they were distracted, Ben quickly ran off before transforming.

FLASH!

Because Lucifer and the other demons were distracted, no one saw him transform. Just then

FWOOSH! FWOOSH! FWOOSH!

"XLR8!"

BAM! BAM! BAM!

Ben quickly went XLR8 and started knocking out all the demons just as quickly. Lucifer noticed this and tried spewing fire at him, but he was too fast and gave him a surprise punch to the face.

"YAAH!"

FWOOSH!

BAM!

"Agh!"

THUMP!

Lucifer ended up falling on the ground, but he wasn't weakened enough yet. He quickly got back up, before spewing fire at Ben.

FWOOSH!

FWOOSH!

Ben zoomed out of the way, before giving him a couple more punches to the face while using super speed. Gwen tried to help by saying "Paralutus!" again. But Lucifer managed to get ahold of himself and started dodging Ben's attacks. He then grabbed Gwen's spell in mid-air and threw it back at her. "WHOA!" yelled Gwen as she ducked, her spell barely missing her.

FLASH!

Max then started firing, but this proved to be useless as Lucifer was able to take them. Then, he took out a grappling gun before firing it onto his wings. It tied them up and made him fall. "AAH!" Lucifer yelled before he fell again. Max then quickly inserted and fired two shells from his blaster. They managed to capture and electrocute Lucifer.

KZZT! KZZT!

"AAAHHH!"

While Lucifer was weakened, Gwen tried to paralyze him again. However, he managed to throw the spell back once again. This time faster and hitting her.

FLASH!

"Aah!"

"GWEN!"

Gwen became paralyzed by her own spell, she couldn't move. Max then kept on firing, but it proved to be of very little help as most of his shots missed. Lucifer was teleporting everywhere. "Hold. Still. You. Little!" said Ben as he kept on trying to attack him, but he couldn't. Just then, Lucifer managed to grab him by the tail and started swinging him around!

FWOOSH-FWOOSH-FWOOSH-FWOOSH-FWOOSH!

"WHOA-WHOA-WHOA-WHOA-WHOA!"

Ben was spun around hard, he was getting dizzy. Then, Lucifer threw him extra hard into a nearby rock.

"RAAH!"

SMASH!

"Oogh!"

"Ungh..." groaned Ben as he slumped near the rock, he was weakened too much to get back up immediately. Lucifer threw him pretty hard. "Ahahahahaha!" Lucifer laughed. Just then, Max tackled and put him in a headlock before slitting his throat with his blaster's energy bayonet.

SLASH!

ROARRRGH!

"That'll teach ya to mess with my grandkids!" he shouted, before stabbing him in the head.

CHAKK!

"Ack-!"

Lucifer suddenly stopped moving, blood started dripping from his forehead. When Max pulled the bayonet out, he fell to the ground.

THUMP!

A few seconds later, Gwen's paralyzing spell wore off. She was able to move again. She quickly got up before yelling "Ablita Plazita!".

FWOOSH!

Ice formed around Lucifer, freezing him solid. Just then, Ben got up and shook his head before switching forms.

FLASH!

"Fourarms!"

FWOOSH!

He jumped high into the air. When he let himself fall, he smashed Lucifer into oblivion.

"RAAH!"

SMASH!

Smoke flew everywhere. Once it was gone, it revealed that Lucifer was nothing more than scattered body parts and blood. Ben panted a bit, before wiping the blood off of him. Then

BEEP! BEEP! BEEP! BEEP! BEEP!

FLASH!

The Omnitrix timed out, he had used up a lot of its energy from knocking out Lucifer's army. "No-no-no-no-no! Not now! There's a fire that needs to be put out!" said Ben, "I got this, Sonoris Bumbargos!" replied Gwen before huge waves of water swept all over the woods.

FWOOSH!

The water managed to quell the fires and put them out, the woods were safe once again. Save for some of the trees there, but nothing a little magic couldn't fix.

Once Gwen revived the dead trees and other plant life that were burned up in the woods, she, Ben and Max went back inside the Rustbucket. As they were resting, Ben wondered if he would meet more villains that were way more powerful than him. He got lucky, because Gwen and Max were there to help him. But what if there came a time where he would face such a villain alone? I guess we'll have to find out in Ben 10 Alternate Dimension.