Whatever might have happened in some different reality, the fact was that she didn't realize anything was wrong until the boy fell out of the sky and everything went to shit.
He came in on a high arc, like a kunai thrown to drop on the other side of a barrier. She caught sight of him from the corner of her eye and turned towards him just as he arrived. The brief glimpse she got said that he was her own age—fourteen, maybe fifteen—and solidly built, with a fascinating jawline and messy dark hair. He had a massive rock tied to his chest and something in each hand. That was all she had time to notice before the world became sound and pain and then silence, as though someone had rammed needles through her ears and wiggled them around inside her brain.
She didn't have time to think about that, because she was too busy being knocked on her ass by the explosion. Hot on the heels of the blast, the boy hit the ground and shattered into a pile of rocks and sand. The minor boulder that had been strapped to his chest embedded itself in the ground.
An instant later it was gone, replaced by a half-dome of water with tendrils flailing out around it like the arms of a psychotically enraged duodecapus. In the center of the hemisphere stood Gōketsu Noburi—his physique and the barrel made him impossible to mistake, especially given how much time he had spent mingling with everyone in the barracks, telling stories that had to be lies while wearing a completely straight face and/or a dreamy smile. Come to think of it, the dark-haired boy had probably been his brother, H...Ha...whatever his name was. His clone anyway.
Gōketsu flicked his wrist like a fisherman casting; a rope of water lashed out and wrapped around Nishikawa's neck, yanking him off his feet and forward to smash face-first into the edge of the hemisphere. Several of the tendrils beat a bloody tattoo on his back and he went down like a sack of meal.
Niko started trying to stand up, but her limbs weren't cooperating. Before she even managed to get her feet under her, Gōketsu was gone. In his place was his brother, the one with the strong jaw and the name she couldn't recall. He was wrapped in a glowing golden outline, some sort of scaled animal with massive claws that she didn't recognize but it was probably a pangolin, given who his sister was. He took three chakra-speedy steps to get to Daiju and chambered a front kick that would have smashed Daiju's chest in if it connected, but Daiju was already shifting to the side...only to find that the attack was a feint. Whatsisname dove forward, spinning into a handstand heel kick that planted Daiju in the dirt like a farmer planting seeds. The kick had barely landed before whatsisname was gone, replaced by a wiry beanpole who zipped in between Miho and Kisato without stopping, leaving a puff of orange smoke behind him as he raced towards Furui. The smoke touched Niko's teammates and they went stiff, falling helplessly to the ground even as the beanpole vanished, replaced by a blue-haired girl with green paint on her face and neck. She was built like a brick shithouse and she wasted no time kicking Furui's face in with a wicked rising-heel kick that launched him up and back. He was still in midair when the girl vanished, swapped out by a sandy-haired boy with glowing purple chakra-construct needles jutting from every part of his body and a short-sleeved shirt that showed off some really nice biceps.
Spikey-guy smashed into Shibahara; the other boy tried to dodge aside but his attacker was too fast. The kick to the thigh would have been painful on its own, but with the needles leading the way it was too much: Shibahara went down. He tried to roll to his feet, but Spikey-guy kicked him in the head and disappeared, replaced by a slender girl with a bad dye-job. She carried a studded mace in her right hand and wore a sheet of stone in the shape of a kite shield on her left arm.
Niko knew what was coming; the rest of the team was down, so there were no other targets. She scrambled back to her feet, the surge of adrenaline mostly overcoming her shock and pain. She assumed the Mantis Stance, Norimoto-sensei's remembered tactical advice screaming in her mind that she should run, but her coordination was still shot. Before she could launch an attack the mace caught her in the groin with a rising strike that bent her double. The shield smashed into the back of her neck and all was blackness.