Doctor Eggman was looking for the group of heroes that are trying to save Colin and all his friends and family. He was feeling little worried that if Sonic, Knuckles, and their friends came along and saved the boy and the group of ponies and baby dragon, that would ruin their plans for World Domination with George, and he thought that with George and some allies, nothing would stop him from creating his own Eggman Empire.
"Grr, I always know that the insufferable Hedgehog is a thorn on my side." Robotnik muttered to himself. "This could be my one and only chance to take over the world with my machines made for destruction, and finally build my empire, but now he, and his posse of circus freaks decided to come along and ruin everything!"
At last, around the fortress, he saw Sonic, Knuckles, Mario, Luigi, and their allies trying to sneak into the fortress. The Panda King blew up a chunk of wall with his fireworks so they he and his cronies can break into this hellhole. "Nice work, big guy." said Sly. "Now we just need to find Colin, break him and his family free and get out of this horrible strip mall."
"Think again, puny weakling!" Eggman sung. he hovered in his craft, and made an evil cackle. "You all have to get through me if you want to stop me and George's plan to take over the world!"
"He's just using you, Egg-butt." said Sonic. "George will just use you until he decides he's done with you!"
"Nonsense! He knows the genius in myself, and how much promise he sees in me if I help him take over Equestria. As soon as I deal you you puny worms, nothing will ever stop us!" then he began his evil cackling some more.
"And I thought Knuckles was a gullible knucklehead." Sonic muttered in annoyance. The red echidna narrowed his eyes at his friendly rival. "No offense, Knux."
Panda King readied his fireworks to fire at the crazed mad scientist, and shot five of them at him. Eggman missed the first four, but the last one hit the center of his little shuttle, making him lose his balance, almost falling off of it.
"Ha! Nice try, big boy, but it will take a lot more than a couple of pathetic fireworks to stop me."
"How about this?" Said Bentley. "Murray?"
The pink hippo pulled Bentley out of his wheelchair, and threw the green turtle at Eggman's ship, and made it lose a little balance again.
While Eggman was dizzy, Bentley planted one of his bombs on the shuttle. Since he couldn't walk anymore, Sly picked up his friend and planted him back in his wheelchair.
"Thanks, Sly."
"No problem, pal."
"I hope I didn't push ya too hard, Bentley." Said Murray.
"Don't worry, old chum." The green turtle remarked. "You were doing just fine. Besides, I told ya I couldn't feel any more pain in my legs anyway."
"Oh. Right."
Just then, the bomb exploded and Eggman was being knocked radically off-course.
As he was yelling while being blown away, he shouted: "I'll get you, Sonic the Hedghoooog!!'"
"And I'll be waiting, Egg-breath." Sonic said boldly. "Well, come on. We're getting closer to Colin."
"Right. But I have a feeling that Eggman will come back soon." Knuckles remarked. "I'll knock him so hard with my fists, his own mom won't even recognize him."
"There's also Bowser in a here." Mario pointed.
"We fought many koopas, Bowser has to be working with George. He is a king of the Koopas after all." Luigi added, feeling a little uneasy to set foot inside.
"No matter." Said Panda King. "If the poor child is in here, we have to save him."
The Guru began talking in aboriginal language again in a wise type of voice.
"You said it, master." Murray agreed with him. "There might be more bad guys to rough and tumble with, but that's not a problem for the Murray!" then he began flexing his arms to show his courage and strength. "Bring it on. Bring it on!"
Sly chuckled before he said: "Alright, slow down there, Murray. I agree with you that it's fun beating up all types of bad guys, but some things require the classic 'element of surprise'."
"Well, we need to keep moving." said Panda King
"Oui. Who knows what evil crocodiles will come and eat us while drinking the punch on ze dance floor." Dimitri added. "We better bust a move across the river of love."
"No idea what you just said," said Sly. "But let's keep moving." they all carefully went inside the fortress, for there would be far more guards in this place than in the prison when they went to break Colin out, and met Comet Onyxtail and his band of prisoners. Going a little deep in the corridors, they encountered many types of guards from Kremlings to koopas to Goombas to many of Eggman's robots they had fought before.
"You know what's funny?" said Sonic. "the alarms haven't been sounded yet since Panda King blew up that chunk of wall."
"That is kinda funny. Normally if highly-secured castles or fortresses walls get broken or destroyed like that, the alarms would go off." Knuckles agreed.
"This is a huge place. Bigger than a thousand pizzerias." Mario pointed. "And I think they probably know we're a coming. What if they are trying to toy with us at first?"
"Very good point, Mario." said Luigi. "Maybe this is a test."
Everyone was thinking about what is going on around here, and maybe this could be a test after all. They all didn't know what to expect up ahead in their journey, but one thing they knew is that it will be a more fierce battle than the fights they did in the prison and at the battlefied outside of this hellish castle.
"Well, come on." said Knuckles. "We're getting a little closer to Colin." and they continued pushing forwards. "I hope Johnny and Rose are alright."
"Yeah. I wonder what they are doing right now." Sonic agreed.
Meanwhile
Colin and his family were watching the big fight between Comet Onyxtail and his friends against the forces of evil that are trying to get in their way from saving him and the others. Many more bad guys were trying to kill or defeat these band of rogue prisoners from succeeding.
Despite being greatly by these creatures and mechanical monstrosities, Comet and his boys were doing rather well. Colin was having a big boast of hope that he will be back home soon, and this chaos finally stops.
Bowser was seeing all this chaos ensue, and looked very worried that he will be overthrown and defeated by this what he calls: "weak and useless ponies". He never knew that such creatures were capable of doing such valiant acts like this, and his army was quickly dwindling one at a time like a bunch of bowling pins or dominoes.
Left with no other option, the Cowardly Bowser decided to try and make a break for it in all the fighting, and escape from all of this. After he quietly slipped away, many of the bad guys were either dead, knocked unconscious, or ran away in complete fear and terror.
After that was all taken care of, Comet and his boys have won by the looks of it, with only minor scratches on themselves from the scrapping the enemies were giving them all.
Comet then went up to Colin to free him, and the rest of his family and friends that he loved dearly. "Did you miss us, Colin?"
"Yeah. I missed you guys." the boy replied. Then the leader of this gang unties him of the rope, and everyone else trapped in them. Scootaloo felt a little dizzy from the torture she was given by George and Eggman, and a little lightheaded to go with her sore body. "Scootaloo!" Colin exclaimed shock.
He went after her, and gently tried to carry her, but she was too heavy for him, and Rainbow Dash gave him a hand with it. "Colin," she grunted.
"Are you okay, Scoot?" asked Rainbow Dash.
"I'm fine. Ah! Just a little sore." she replied. Scootaloo was certainly in pain, for George has tortured her a few times. Whatever she had suffered was far worse than Colin had endeavored.
"Don't worry, kid." said Silver Moon. "She'll be fine. She looks tough, I know she is."
"Yeah, she has to be tough." said Rainbow Dash.
"And, who might you all be?" asked Celestia.
"i am Comet Onyxtail, your majesty." said the leader.
"Wild Lightning."
"Silver Moon."
"Name's Clover Venture."
"I'm Jet Set."
"Silver Spirit."
"These are friends I made in prison." Colin explained.
"Yep."
"Well, it's... certainly nice to meet you." said Fluttershy a little uncomfortably.
"We can get to formalities later." said Applejack. "But right now, we have to get out of here and find Johnny." And they all began to escape together as friends and family again.