OOC: You didn't specify anything about what weapons we can have so I'm improvising.
Josh assumed the guise of the Jaeger, even though it was technically the first time he'd been in a Jaeger, whether it was a simulation or the real thing was indistinguishable. He looked down at his hands and slowly made fist's, it was a spectacular sensation. The blue glow of the incoming Kaiju was drawing closer and closer while he stood on the outskirts of the town by the pier. He snapped out of his drooling session and focused on the incoming threat. Josh snatched up the largest vehicle he could find with his right hand, a cement truck, and then leaped into the ocean to head off the beast. It looked a lot like a hammerhead shark in appearance, perhaps one that had mixed with a gorilla. It dove deep into the water before shooting up out of the water like an explosion. It's claws and jaws all bearing down on Josh.
"Unpredictable." Josh heard Iris's voice in his head, a brief memory from their training. It gave him an idea though. As he just reached the optimal range, he dropped to his knees and allowed his body to sink into the ocean. Now, in this instance, the Kaiju was mere moments away from being directly over head of him with his right hand primed. He then shot his arm upwards for a devastating upper cut, the cement truck adding some pressure to the punch. It exploded upon contact, nothing dramatic as their wouldn't be much fuel in it anyway. The Kaiju was temporarily stunned and fell into the water but perhaps that was a rouse because it's glow started to swerve in the ocean before diving out of view. "Come out and fight me you little bastard." he mumbled, scanning the area with the powerful lights on the shoulder of the Jaeger.
Josh was now standing, to get a better look of the ocean, he suddenly felt something around his ankle pull him under. The Kaiju had used it's tail to pulled him down and into a trench. There was no worry of pressure damage from this depth but being trapped underwater wasn't in his favor, especially with what seemed to be an aquatic natured Kaiju. It swerved in the water with great ease before turning round and gunning right for him. Josh had to think fast and luckily came up with a plan that seemed solid enough. He raised his hands in a criss cross manor, almost as if to block but just before impact would occur. Long blades shot out from the forearm on both arms and he pushed forward. The Kaiju's momentum and his pushing force carved the creature into 4 halves.
The sliced chunks drifted past him and rested on the ocean floor just beyond him. He retracted the blades and made his way back to higher elevation. Just as he managed to get half his body out of the water, a Kaiju that resembled that of a Pterodactyl swooped in and landed on his shoulders. Digging it's powerful talons deep into his metal body. This damage was of course reflected in Josh's body, he screamed in pain but did his best to fight back. He quickly move his hands up to grab it's thin legs firmly and began to squeeze. The skin of a Kaiju was thick, their muscle sturdy and their bones nearly unbreakable but he was able to deal enough damage to the slender legs of the beast for it to loosen it's grip on him. Just then, it started flap it's wing's violently and did it's best to usher Josh towards the city.
"I don't think so." he managed to speak over the pain surging through his shoulder blades. Josh released his arm blade again and swung over his head to cleave the creature but it released him and managed to be just out of reach. They were back near the pier at this point, Josh refused to let it get to the city so he glanced around at what was closest. A boat load of shipping containers, literally. He grabbed a handful and hurled them at the airborne beast, none of which connected. "Alright then." he muttered, not wanting to cause this much collateral damage during his defense of the city but not seeing another choice. He grabbed the boat by it's side and spun around to build momentum before releasing the massive ship and all it's contents towards the cocky Kaiju. It was flying just out of his reach which made it difficult to escape the boat clipping it's wing and bring it down to the water.
Josh couldn't allow it to get airborne again so he darted towards it and jump towards it. It was fighting to get up when he came crashing down on top of it. Josh quickly grabbed it's neck and gave it a couple strong rights. These wouldn't be enough to kill it but they were enough to unbalance the creature long enough for him to adjust his hands to now be grasping both upper and lower jaws. The Kaiju panicked and started thrashing violently, it's wings had some sort of talon on it' ridge, these managed to catch Josh's midsection but this only motivated him to pulled as hard as he could to separate it's lower jaw from it's head. It screamed in it's menacing and pained roar, fumbling around for a moment before nearly falling under the water. This could be perceived as a victory to some, but not Josh, he wanted to make sure it died. He raised his foot and stomped the head of the Kaiju down into the ocean floor below them. Holding it there.
Josh stood there for at least a minute before he was convinced the Kaiju was completely dead. He let out a sigh of relief in happiness but it was short lived because the final three Kaiju appeared all at once. They were on the attack before he really had a chance to identify them, he preferred to see what kind of creature they resembled so as to forge an attack plan but they weren't giving him that luxury. Before he knew what hit him, he was on his back in the water with several beastly fist's and sharp claws bearing down on him. Josh screamed in pain as nearly every part of him was struck. "This...can't be...the end!" he yelled, activating his chest canon barrage. The plate over his chest separated and multiple canons rose slightly. Then, like the saving grace they were, they all fired at once.
With the Kaiju so close to him, the explosions only amplified each following rocket. Unfortunately, the damage from their attack and his own, cost him severely. Their bodies absorbed most of the damaged but it also reflected enough back at him to scorch his outer areas. The only thing that helped mitigate the damage was the rushing ocean over his body. The Kaiju had backed off for the moment, rocked by the multiple explosions but definitely not down for the count. Now was the only opportunity he was going to get, it was now or never. He mustered all his strength and forced himself up, pushing through the pain. He deployed his arm blades and with extreme prejudice, he hacked away at the nearest one. Not caring what creature they resembled, only knowing that his blades would carve them to bits.
After several slashes that left the Kaiju nearly dead, he made sure to end it with a stab through the brain that penetrated deep into it's chest. He withdrew from the beast, it's blue blood splattering across the ocean as he turned to take down the next one. It had already jumped at him, he didn't have time to make a solid counter so he did the next best thing. He fell backwards and let it fall onto his blades, they burst through it and out the back of the Kaiju. He rotated his wrist's from left to right a couple times for good measure, to inflict the most damage. He rolled to his side and pushed it off of him. His breathing was heavy, he made it to one knee before the last Kaiju tackled him. It dug it's teeth into his left shoulder area, missing his neck by what would be inches on the human body.
Josh cringed and yelled at the pain, managing to push the beast off with it's own momentum from the tackle and simultaneously brought his right blade around to meet with the top the Kaiju's skull. The part of the head from the mouth up, was now separated from it's body and the entirety of it's being fell into the ocean. Josh now rose to a full stance, retracting the blades for the last time. Sparks illuminated the dark sky and black ocean, he was banged up pretty bad but at least he still had all his limbs. The following simulations went similar to this one, only varying in minor details. Just as he exhaled deeply, the simulation faded out and he could now see the inner room like it was before. All the lights were back on and the mount that held him in place adjusted so he could be released. "That was for you mom, for you dad." he said quietly with a much needed sigh as he approached Iris in the control room.