Over in an area outside of Sydney, Australia. Gyaos swooped down onto a road, causing some cars to crash and others to flee from their vehicles in terror. She let out a roar, frightening them further. Even shooting a fireball at some vehicles.

Gyaos: Run, peasants. Let them know Gyaos will now rule this island and any Titan who dares interfere will---

Gamera: Gyaos!

Gyaos stopped, almost as if her heart stopped beating hearing that familiar voice. She turned to see if her mind was playing tricks on her, when there stood Gamera.

Gamera: Remember me?

Gyaos: Gamera...hello.

Gamera: I'll keep it to the point, leave this territory at once, you are harming innocent people. I may not be a Surface Protector, but I won't let you continue causing destruction!

Gyaos: It's been a long time.

Gamera: I'll say, are you even listening to my warning?

Gyaos: I don't know whether i should listen...OR KILL YOU!!!

Gamera:...I take it as a no, then. 

Gyaos: Why don't we duel, for old time's sake?

Gamera: Fine, guess reasoning won't work

Gyaos flew up and screeched at him ready to battle, Gamera roared also ready to fight. Gyaos wasted no time and struck at him with her talons, Gamera retaliated by biting down on one and tossing her into the ground.

Gyaos: *rose up and swung at Gamera with her claws* So, where have you been? *shoots a fireball*

Gamera: *blocks with his shell* Asleep, just like you were for so long *tail whips*

Gamera then charged and rammed Gyaos down like a bulldozer, Gyaos quickly however recovered and slashed at his side

Gamera: Guh!

Gyaos: *then shoots a fireball into his chest knocking him back* C'mon, Gamera! Your boring me to death, hit harder!

Gamera shook it of, his legs shrank into his shell and launched at her

Gamera: Careful what you wish for! *He slammed into Gyaos and then tail whipped her like a baseball bat*

Gyaos shook her head and breathed a fireball at him, Gamera fired back with his own, both fireballs hit eachother and the two charged and wrestled.

Gyaos: This feels so good! Reminding me of the good old days! *swings*

Gamera: Urgh! *his face was slashed* Sorry, Gyaos! But you know me, i could never admit to enjoying a fight...unlike Anguirus! *tail whips again*

Gyaos flew up over Gamera and dropkicked into his shell from behind, sending him face first onto the ground, Gamera's tail smacked her down as he got back up. The two Titans wrestled again with Gyaos biting into his arm, Gamera roared in pain and was seemingly weakened.

Gyaos appeared to be winning and was about to strike him down with a claw, Gamera shot a massive fireball right into Gyaos' chest, blasting her into the side of a hill.

Gamera: You want to keep going? There is no bell in a Titan fight.

Gyaos: *coughs* Ha...you should know me better, Gamera. I've got years of pent up--

The two rival Titans heard an explosion and saw in the distance, the city of Sydney under attack from an enemy Titan.

Gyaos: Welp, nothing we can do. Let's continue--

Gamera: Draw.

Gyaos: You can't just end a fight like that!

Gamera: Gyaos, there's humans in danger. We're going to have to call this one a DRAW!

Gyaos: Hmph, fine!

Gamera: I'll make you a deal, help me stop the threat in the city. We'll duel again somewhere far from humans later.

Gyaos: Hmm, alright. Guess that'll be fun.

So the two rival Titans took off to Sydney to deal with the menace.