A cameo AND a battle for N0B0DY.

Nobody glowered expressively at his younger sister Kristy.
"C'mon, N0, please?"
"No. You're too young for this, Kristy. You should go home."
"But -"
"For the last time, Kristy -"
"All right, all right! It's just that I have a really bad feeling about this."
"I can take care of myself, Kris, besides, it's not like it's just me."
"I know! It's just -"
"You can't stay."
"Oh, fine! Mom says be careful."
N0 grimaced as his sister glared at him. He glanced at Tiger. "Send her home, will ya?"
"Sure."
Kristy squawked with surprise as she vanished. N0 shook his head.
"Thanks, Tiger. I don't even know how she got here."
"Don't worry about it. What'd she say? I wasn't listening."
"She has a bad feeling about this."
"She came all the way from Mechaius to tell you that?"
"No, you don't get it. Kristy gets premonitions. Her bad feeling means this is worse than it looks."
"Oh."
"Yeah."
The pair of them stood outside the Outpost. Tiger glanced up as a speeder approached. A rabbit with bronze fur was driving. As he drew closer, the vehicle slowed.
"Hey, N0, Tiger. Anyone know where I can find Copper?"
"Sorry, Shonar," Tiger said. "She left yesterday. Might still be groundside, though."
"Hope so. Hey, you guys know there's a coupla capitals coming this way, right?"
"Capital ships? No," Tiger said, suddenly nervous. "Space lanes have been closed."
"I know. That's why I told you."
"Thanks, Shonar."
"No problem. Hey, I've gotta run. I'll see you around."
"Hope so."
Shonar throttled up and sped away. Nobody glanced up at the sky, noticing a pair of shapes flying closer. "Wow, we're popular today," N0 said, recognizing them as Kaz and Sasha.
Sasha didn't even land. "Tiger, Nobody, you're needed at the Castle."
"What's going on?" Nobody spread his wings.
"The Castle is under attack. Let's go!"
"By whom?" Tiger demanded. Kaz shrugged expressively and dropped three feet before he caught himself.
"I don't - oh, Flames of Gyron - they followed us, Kaz -" Sasha spun as he landed, to face the way he had come. Nobody blinked, confused.
"What?"
A pair of sleek, ovoid shapes hurtled from behind a building, and N0 recognized them as Shockflyers. He was already forming a bar of energy, and as one shot towards him he took a swing. It spun to the side, but he clipped it anyway, scorching it and making it back off.
Sasha was in the air again, dodging the static charges and kaz's pepperspray. He flipped his wing to one side as a bolt of energy lanced by, then slashed with his scimitar, cracking the tough plastic alloy casing. The small automated ship spiralled away.
Then N0 and Tiger were being menaced again. The Shockflyer came in close, and N0 lashed out with his mechanical leg, sending it wheeling into the building behind it. The force cent N0 back as well, but he caught himself and turned just in time to see the scorched, damaged robot rise out of the hole it had created, lights malevolent red. It swivelled, focusing on him, and rose up. It came slower this time, circling.
Abruptly it was smashed back into the ground again as Sasha landed forcefully upon it, driving it down, before flipping up and literally bouncing off the wall. The Shockflyer vanished just as suddenly, courtesy of Tiger, and N0 glanced up just in time to see Sasha impale his on his sword, while Kaz blindly fired at nothing. The Shockflyer fell lifelessly to the ground, sparking and shorting. Kaz finally stopped, breathless.
"Did I get it?"
"Yeah, you got it," Sasha said. He sheathed his sword. "So. Shall we go?"

Next chappie introduces the last bad guy. YaY!