The Master Revealed
Underground base: The hall
The heroes are shocked at the face of the master.
"Whoa, that guys looks like Eggman, except with different clothes, and his mustache is gray." Milly said.
"It's Eggman Nega." Blaze said.
"Further explanation, please." Holly asked.
"Eggman Nega is an alternate version of Eggman." Sonic explained. "I thought we've seen the last of him when he got sealed in the Ifrit dimension, but we were wrong."
"You are right, that wasn't the last time you saw of me, in fact this will be the last time you'll see of me, 'cause I will end you in this war." Eggman Nega said.
Then Shadow suddenly arrives in the hall.
"About time I caught up with you all." Shadow said.
"So we're adding another member, I see, how about I add a member to my group as well." Eggman Nega said, as he pushes a button.
Then Metal Sonic joins Eggman Nega.
"Metal Sonic!?" Isabella shouted. "I thought he was working for Eggman?"
"True, he was, but I found Metal Sonic critically damaged, and that's where I came in, I repaired him, good as new, and he joined my side." Eggman Nega explains.
"Hold on. I thought he was fighting Silver." Phineas said in a confused tone.
"Oh, Silver was defeated, and he's been taken prisoner, and his Chaos Emerald!" Eggman Nega gloats as he laughs.
"No way!" Buford yelled.
"Now let me tell you what I plan to do now." Eggman Nega said.
"We don't have time to listen to you." Sonic talks back.
"Oh yeah, then I guess I'll just skip to ending you." Eggman Nega said, and he calls for more guards.
"Ya ready?" Sonic asked.
"Let's go!" Knuckles replied.
The heroes dog pile on the robots.
"Is that all?" Sonic taunts. "That was easier than Eggman."
"Oh, that was just a small portion of what's to come." Eggman Nega assures him. "For your impressive skills, I have a little parting gift for you, your friends, and those kids." and he chuckles.
The place starts to collapse.
"Now my metallic minion, get us out of here." Eggman Nega asked Metal Sonic.
"Acknowledged." Metal Sonic says, as he pulls out the Red Chaos Emerald, that he took from Silver earlier and gets ready to teleport himself and Eggman Nega out of here. "Chaos Control!"
Metal Sonic and Eggman Nega are gone.
"Quick, we better get out too, or we are gonna be buried alive." Baljeet said.
"Don't worry, we've got this." Sonic said.
"Chaos Control!" Sonic and Shadow both cause Chaos Control.
Just as the heroes disappear, the hall collapses.
Danville: Phineas and Ferb's backyard
The heroes are teleported back to Phineas and Ferb's backyard.
The master is revealed to be Eggman's alternate counterpart, Eggman Nega, who somehow escaped the Ifrit dimension and has Metal Sonic working for him, along with his other robot lackeys. The heroes escape the base, as Eggman Nega tried to bury them alive. Will the heroes be able stop Eggman Nega? To be continued...