In Mewni, we see that Flame, Star, Marco, Janna, and Tom made it thanks to the red hedgehog's speed. They need to come up with a plan since they just arrived in Mewni. 

Tom: Hey Flame, you got a plan?

Flame thinks about that when Tom mentioned it, coming up with a plan. It took him 11 seconds to come up with a plan.

Flame: Why yes I do have a plan! 

Janna: We're hearing you.

Flame: Alright, me, Janna and Tom will head to where the new monstertown. Star and Marco will go check on Moon and asked her what's going on. Sounds like a good plan?

Star: Oh yeah, it sounds good!

Flame: Once we made it in New monstertown, you two, Tom and Janna, will meet Eclipsa and the others. 

Janna: Sounds great man.

Star: See you on the other side!

Flame: We will, I love you. 

The red hedgehog blow a kiss to Star, which she blushes pink.

Star: I love you too, Flamy!

And they split up in groups, with Janna holding on to Flame, who is running his way to monstertown and Town following him. The red hedgehog was holding back in a infinite scale when he is running, he just hope they are not too late.

Now inside the temple, Eclipsa nurses Globgor's wound. Abbi was very surprised that her ice powers have no effect on that suit of armor. What they didn't know that the suit of armor was no longer attacking them, but they gotta deal with a new threat. 

Globgor: I can't take it anymore. I need to go back out there and fight that thing!

Globgor is once again stopped by the stinging cut on his arm.

Eclipsa: Absolutely not! You're in no condition to fight.

Globgor: It's just a flesh wound. It's nothing.

Eclipsa: It is not nothing. I'd recognize that wound anywhere. That soldier... It was a Solarian Warrior.

Globgor: What?!

Lady Whosits:  A Solarian Warrior?!

Abbi: A what?

Eclipsa: A Solarian super-warrior. Queen Solaria created them to destroy all monsters. They were incredibly powerful, but that power made them unstable. I don't know how one of them managed to survive for this long.

Globgor: So what do we do? Can you fix this?

Suddenly, Abbi's quill detect danger is coming, and she can sense that it's not the Solaris Warrior.

Abbi: Everyone! Hide!

Kritanta: Knock knock!

Globgor: Who's there?!

Kritanta punches a hole into the temple, his eyes looked around, knowing their already here. He is just toying with them, Eclipsa helps Globgor move off to the side of the room so that the embodiment of death don't see that. They have never seen anything like him before.

Kritanta: Oh come on! Don't be shy, I know you are here, come out whenever you are!

Hearing this terrify everyone in this temple, Abbi really wants to shoot him with her ice beams. But her body isn't allowing her to do so, shaking a little, is this fear she's sensing? Why is this happening to her?

Abbi: (W-What's happening?! Why can't I.. Why is this happening?!)

Kritanta: Panicking? You are trying to challenge me? Your willpower is not even strong enough to withstood my existence. I can just taste the fear and madness that is slowly consuming you.

Her eyes turn wide when she looked at herself, Eclipsa, Globgor, and the others gasp. Abbi's body was turning gray, she can feel her body being weaken slowly. The fear and the insanity is consuming her, slowly, she can't even fight back. It gets worse every time when she tries to fight back and overcome it, whenever it happens, she collapsed down the floor.

Eclipsa: Abbi!

Suddenly so, even Eclipsa can't move or fight back, fear and the insanity is slowly consuming her.

Kritanta: Not a chance at all. 

The embodiment of death started laughing in a evil way. She was panicking badly, this feeling. Is this the end of the queen of monsters? But! Kritanta gets blasted in the back by the heat vision and falls over. Eclipsa, Abbi, and the others looks where the heat vision came from. It was no other then Flame himself!

Abbi, Eclipsa, Lady Whosits and Globgor: Flame!

Kritanta is back on his feet, in anger. The heat vision that just hit him, it felt like Post-Crisis Superman's one, but he wasn't able to avoid it. This was the first time that a single mortal had made him felt something, other then just the Celestial.

Flame: I don't think I will allow you to do that, whatever you are.

Kritanta: Whatever I am? 

He laugh when he heard Flame said whatever you are, this was the first where a mortal doesn't know about his existence. 

Kritanta: I am very surprised that the prince doesn't know the embodiment of death himself! And more then just that... your the first mortal to actually hit me. I like it!

For this reason, Flame could only chuckled. Looking at the falling Abbi and Eclipsa, he performs a technique as he focus on his aura, his aura form a light blue and transfer that aura to Abbi and Eclipsa. They were confused what Flame gave them.

Abbi: Flame.. what did you-

Flame: I used this technique, a unique technique called Change the Way.

Eclipsa: Change.. the way?

Flame: Weird name I know, but simply put, let's just say this aura can protect you from anything that you were destined to either die or suffer. 

Abbi: Seriously?!

Eclipsa: I gotta say.. that technique is unique, thank you. 

Flame: No probs. 

Kritanta land a punch on Flame, but he deflect that punch from him and fire his heat vision towards him, knocking him back. The embodiment of death is very impressive once more, his heat vision wasn't nullify or even be consumed, this got more interesting.

Kritanta: Perhaps I was wrong about your power.. your potential.. it keeps growing in such a infinite amount. And to my surprise that you weren't consumed by fear, death, or even insanity. Finally, our battle will be legendary!

Flame could sense the pressure of Kritanta, being able to interact with the embodiment of death is a feat that should be taken seriously.

Flame: Just to let you know, I don't go down way too easily. 

The red hedgehog powers up heavily, as Kritanta predict what's Flame next move and what outcome will it be in the future. Flame teleport behind him and about to knee him, but he blocks it and throws him towards a mountain, which explodes. Flame gets back up as Kritanta attacked him before he could react, but luckily he avoid it, the red hedgehog gives inflict more damage on the embodiment of death before firing his heat vision, which he blocks it. 

Flame got the chance to deliver a large flurry of blows to the embodiment of death, Kritanta stretches his arm as he grab Flame and slam him to the ground multiple times. The red hedgehog then freezes time, but he realize that the embodiment of death is not affected by his time freezing ability, which he is shocked by it. 

Kritanta: That's not going work!

Time unfreeze as Flame phases through his gripped, the red hedgehog appeared in front of him as he kicks his head and spin his kick around him to do blows on him. The embodiment of death let out a scream that basically cancelled out your soul and mind, but Flame resist his scream as he is launched back still. Flame spin dashes as a red and blue aura forms around him, using his Change the Way technique when performing his attack. Kritanta could only chuckled as he knows that this will fail. 

As Flame releases himself right into the embodiment of death, but sadly, Kritanta beats him around too fast for the red hedgehog to handle or react. Before Kritanta could attack him, Flame transform into his Super Blue form, knocking away the embodiment of death. 

Super Flame Blue pushes Kritanta off the surface into outer space, throwing flurry of punches at his face. He was able to hurt a shadow God ghost being even in his God form, a form more powerful than his Hyper and Kaio-ken times one thousands. They fly straight into further and outside of all the Multiverse, they both trade punches and numerous blows to each other. Flame was able to get a clear upper hand, only slightly. He charges forward and starts landing some punches to the embodiment of death, he blocks Flame's punches until they end up all the way in a unknown world, far, far away from Star's world. Kritanta knocks Flame into a Jupiter size planet, the red hedgehog detect an incoming attack from Kritanta, the red hedgehog lifted up Jupiter with complete ease and throws it towards the embodiment of death, but phases through it as the planet was destroyed into pieces. 

Kritanta drastically increases his size that is bigger then a galaxy, he grabs the Sun and throws it towards Flame. Flame holds the Sun with his two bare hands, unaffected by the sun's heat, he simply absorbs the Sun's energy and amps himself into a insane level. Kritanta is impressive by Flame's hidden abilities that he holds back throughout many years. 

Kritanta: Impressive, during those battles for the past minutes, you bypass it. My ability to predict the exact future, knowing what will happen and posses such knowledge of the events to come! Your potential is much higher than your father.. 

He chuckled, he has to admit something he hasn't for awhile.

 Kritanta: And I still can't stop thinking you won't die by my own existence. 

Flame: I am guessing that you can manipulated a person's death.

The embodiment of death smile grew. 

Kritanta: Yes. You figure that out that fast.