Guest MK character... Sub Zero.

Otherwise- The Toxic Avenger
Judge Dredd
Spawn and the Violator... Package deal

I can honestly see the #1 guest character (assuming there will be a few this time yet again) being an MK character. As much as I think Scorpion is always the most likely as the MK mascot, I think maybe Boon will do the same for Injustice that he did for MKX where he doesn't recycle guest characters.

With that in mind, I think Sub-Zero is MOST likely.

Then next would be Raiden, who has somehow changed to a protagonist level beyond Liu Kang ever since MK/DC.

But if I had a choice, I would have Shao Kahn in there throwing down. I can just imagine the havoc he could wreak upon the other DC characters and the super move he could make! He's still iconic enough from the MK franchise to be recognizable and would definitely be very unique to the roster.

I can't believe I didn't think of suggesting the Violator right away. Great suggestion.

The Toxic Avenger would be fun, too, though also better suited for a M-rated game.

Other suggestions: The Teenage Mutant Ninja Turtles, and exclusive characters for the XB1 version such as Killer Instinct ones and the Battletoads.

I want to see Sub-Zero, purely to see him get a more comic book oriented costume design (I think Scorpion's Injustice costume is the best he's ever looked and would love Sub to get the same treatment)

But thematically, Shao Kahn fits perfectly. He's practically a comic book villain already. Evil plans, godlike strength, ruthless with both his enemies and his allies, doesn't tolerate insubordination, controls an army of evil rag tag monsters, breaks rules, finds loopholes and has a get-up that is simultaneously goofy and fearsome.

I'm also a huge fan of Spawn and have numerous comic books but I'm kind of precious about him and would be annoyed if they mess up his design or moveset. Not to mention no Keith David = no deal.

Robocop
Sub Zero
Shao Kahn
Lara Croft.

This. Scorpion getting the Jim Lee treatment turned out amazing.

Sub-Zero could just get such a design as an alt in a MK game. No need for a guest appearance in I2. Anyway, one Marvel guest that comes to mind is Storm.

You have to be the biggest troll to never be banned on MKO.

Marvel will NEVER give a character to DC for a video game. They can't even get all their characters in a single movie.

Alien

Supermove: The opponent gets swarmed by hordes of Aliens.

Outro: The opponent wakes up in the hive near an egg, screams, and the facehugger jumps out of the egg and attach itself to their face. The camera zooms out, and we see the whole hive, with the Queen at the center.

Gear and armor: Instead of those, the Alien gets a variety of traits from different host species, like a Predator's mandibles, a Tarkata's blades, stone skin (from Tremor), the ability to walk on all four, etc.


Predator

Supermove: Self-destruct. If it ends the last round with this move, the screen either goes black or white, or we see the arena in complete ruin.

Outro; The Predator roars in victory. Afterwards we see the Predator put it's new trophy on the trophy display in it's ship.

Gear and armor: Every weapons, armors and helmets from the Predator movies.


Stryker

Supermove-Police Brutality.

Stryker and a squad of countless other cops shoot at the opponent, then he and a few others beat them down with their batons, and finally, Stryker, his back turned to his opponent, throws a grenade at them.

I must respectfully disagree. Jim Lee's Scorpion was hideous.

Even though all signs point to Sub-Zero (which I'd be perfectly happy with,) I'd like to see other comic characters making an appearance. Like others mentioned:

Judge Dredd
Spawn
A Ninja Turtle (Leo!)

That sounds amazing!

No, just no, there are plenty of other choices to pick from. Spawn, Shao Kahn, Robocop or even Sweet Tooth. I cannot fathem having a character like SZ in Injustice 2, instead of the much more entertaining interactions between Joker vs Sweet Tooth. Not many MK characters seriously fit into Injustice; Scorpion worked out but he was still forced into the comic hero world. This time around Injustice has more dialogue, what can SZ say besides ice puns to each and every hero or villain?

No prob Bob. I get how that costume could be a bit polarizing. Even I think it's a bit too bulky, but overall, I find it interesting.



So, Sub Zero wouldn't work, but Scorpion was fine and Sweet Tooth should be in based off of what he might say to another character? If you say so friend.

Also, does anybody know what killed the dinosaurs?

JOHN CENA.

He is a super secret boss and every time you think you win he gets another life bar.