Chaos Academy
Disclaimer: I don't own Yu-gi-oh GX or Sonic the Hedgehog.
*BANG*
The wall to the Obelisk arena was blown open, sending up a cloud of dust. Out of the cloud stepped three very strange figures. Two of them resembled bipedal weasels--one wearing a cowboy hat and vest, the other clad in a tight-fitting leotard. The third looked like a panther, wielding a cybernetic arm that ended in a machine gun.
"Awright, boys and girls," the cowboy-hatted weasel said. "We're lookin' for a guy named Truesdale. He's got somethin' we want."
Damnit, thought Zane. They're after the Chaos Emerald I have. I can't let them get it.
"Hand it over, buddy boy," the other weasel said in a nasally, but feminine voice.
Looks like I've got no choice.
"Over my dead body," growled Zane. He held out a hand, and a teal ring materialized around his wrist. "CHAOS FORM!"
The ring started to glow, and the room was engulfed in a bright light. When everyone's vision cleared, Zane was gone. In his place was a teal-colored creature with long dreadlocks, wearing a jumpsuit that had the same colors as Zane's outfit. "Gear the Echidna."
The panther smirked. "Looks like we got more of a challenge than we thought, boss."
The cowboy weasel nodded. "This should be fun."
Zane, or rather Gear, glared at his three foes. "Come and get me."
"With pleasure."