(The Dinobots are seen fighting Omni-Man.)

Grimlock: (turns to Zero-One) Lucas, we're gonna help Mazinkaiser and the others. But first help me to deal with this Superman rip-off.

Zero-One: Right!

(Grimlock energizes as he jumps in the air. Zero-One does the same and Omni-Man gets angry.)

Omni-Man: I WON'T BE DEFEATED BY A MERE DINOSAUR AND A MERE HUMAN!

Grimlock: DINOBOT CYBERTRONIAN KICK!

METAL RISING IMPACT!

(Zero-One slashes Omni-Man various times before Grimlock kicks him, sending him to crash into the building. Saber runs back to him.)

Saber: (worried) Master, are you hurt?

Omni-Man: (weakly) We need to retreat back to Union-Verse. (glares at Grimlock) We'll meet again these days, Grimlock. You will regret it.

(Then Grimlock decides to help Mazinkaiser while Doctor Hell sends his Mechanical Beasts, only for them to be blasted into pieces by Vilgax and Ultron.)

Vilgax: (smirks deviously) Well, well, well, just a few seconds and I'd miss the party. Right, Ben Tennyson?

Ultron: (chuckles evilly) Put party in that.

Ben 10: (eyes widen) Vilgax?

Slash: Who are you?

Sludge: You're one of the Chaos Avengers, aren't you?

Scowl: Of course he is, his name is Ultron, and he upgraded himself after being defeated by the brainwashed Justice League.

Ultron: HAHAHAHAHAHAHAHAHAHA! Very clever, Dinobot. Now it's time for your extinction!

Vilgax: (smiles evilly) Now it's time to settle this, Tennyson!

Gyro 23: Dad, let's fight him together.

(Ben 10 is confused by being called "Dad", but returns his focus on Vilgax.)

Ben 10: It's Hero Time!

(Ben 10 becomes Rath and Gyro 23 becomes Handy Man as they charge at Vilgax while the Dinobots dodge Ultron's beams. Meanwhile Green Spider, Getter Arc and Kamen Rider Kabutack are seen fighting the mechanical beats until they see Rias.)

Rias: (smirks deviously) You shall become my new servants instead of joining those aliens.

Green Spider: Not interested.

Kabutack: Me neither.

Noelle/Shinobu/Uryuu: Time to go back to where you belong. Getter Change!

(Getter Arc changes to Getter Khirik as it charges at Rias and grabs her. Then Kabutack prepares to finish her.)

Kabutack: Rider Kick!

1, 2, 3, RIDER KICK!

(Getter Khirik throws Rias up, and then Green Spider whacks her. FInally Kabutack leaps into the air and kicks through her.)

Rias: (angry) YOU HEROES WILL PAY FOR MY FAMILY NAME! I WILL HAVE MY REVENGE ON ALIEN DINO THUNDER MEGAFORCE AND YOU FIVE!

(Then she explodes and both Green Spider and Kabutack fist bump.)

Kabutack: Hey, we should do this again sometime.

Green Spider: Once a superhero, always a superhero.

(Then Doctor Hell blasts both away as he is seen in his Great Marshall of Hell Form.)

Dr. Hell: (stern) That was the final straw. You will all die!

????: Why not let me have some fun, Doctor.

Dr. Hell: (sighs) Great, it's you... Afimi.

(Everyone turns to see Afimi in her Personlichkeit.)

Afimi: (to Isaac) Hello again, darling.

Ben 10 (Rath): Let me tell yo something, Isaac. Do you know her?

Koji: Ben, you're not the only one who had to deal with an yandere ex-fiancee.

Isaac: Yep, she thinks I'm destined to be hers.

Ben 10 (Rath): (glares at Afimi) Let me tell you something. You're...

(Personlichkeit charges at both Mazinkaiser and Ben 10 (Rath), punching them away.)

Sludge: We gotta defeat that girl.

Freedom: I got this.

Getter (Devolution): So you let a psychotic girl join you, Doctor Hell? How low can you go?

Dr. Hell: (stern) I fell into despair every time I got defeated by you. I HAD to take some drastic measures. (to Afimi) KILL THOSE BASTARDS!

(Personlichkeit grabs and throws Gundam Freedom to the buildings before charging at the heroes. Suddenly Gundam Ddraig come in, now with two pilots: Leafa and Winter.)

Winter: (angry) We'll make sure you pay for what you did to General Ironwood, Ben Tennyson.

(They prepare to destroy all heroes, but suddenly a certain blue mecha comes in.)

Cybuster: (eyes widen) Oh no!

Ben 10: What's up?

Cybuster: (terrified) He's back!

Powergirl: Who's back?

(Then the mecha's crown glows and fires a yellow beam at Doctor Hell.)

Dr. Hell: (angry) NOOOOOOOOOOOOO!!!!!!

(FInally Doctor Hell explodes and dies. Then the mecha turns back at both Mazinkaiser's Team and Ben 10's team.)

Mazinkaiser: (eyes widen) No, not him!

Ben 10 (Rath): Let me tell you something. Him who?

Cutie Honey: (eyes widen) Cybuster's worst enemy.

Sludge: What are they talking about.

Mazin Emperor G: (eyes widen) The first mecha developed by the Divine Crusaders.

Devilman: The Black Hole Slaughter.

Gwen: I think I know who they're talking about.

Slash: And that is?

Gwen: (terrified and points at the mecha) Him.

(The mecha reveals to be Granzon.)

Granzon: (smirks) That's right. Granzon is BACK!

(Then a wormhole is open, and Granzon pulls his Granworm Sword before charging at Ben 10. Vilgax and Ultron nod at each other and leave the battleground.)

Grimlock: NO!

(Grimlock stands in front of Ben 10 and gets slashed by Granzon.)

Ben 10 (Rath): (eyes widen) GRIMLOCK!

Ultraman: (eyes widen) NO!

(Granzon then releases a massive gravity orbs around his Graviton Cannon, crushing the other Dinobots. Everybody gets shocked, and both Mazinkaiser, Cybuster and Gundam Freedom get in their fighting stances.)

Cybuster: (growls) You will pay for killing our new friends, Granzon!

(Then all heroes prepare to fight the final battle.)

(As the screen fades out, Lee Shirakawa's maniacal laugh can be heard.)