I'm not rewriting the story, I'm just going to post the alternate ending to this story. Read the story to understand this.

Never Look Back: Director's Cut
Chapter X
Change In Plans

Amy had lost all hope. "What should we do with her?" Metal questioned. Eggman had thought of just eliminating her, but with some deep contemplation, he scrapped that idea.

"Throw her in the prison. Cell block H." Eggman ordered.

"Yes, sir!" Metal responded. Metal picked up the broken hedgehog and carried her off. Eggman was in his office, dwelling on his thoughts. There, he hesitantly changed his plans.

"Metal! To my office immediately!" Eggman commanded over Metal's comm.

"Yes, sir." He responded.

"What do you wish for, Doctor?"

"Sit down." Metal sat in the nearby chair. Eggman silently paced back and forth as Metal got impatient and was about to say something, until Eggman spoke. "I've had a change of plans. I'm not going to eliminate every living thing on the planet. I'm going to, instead, hold them prisoner. I want something to rule over instead of just a bunch of robots. The ones I spare will be used to build the capital city, Robotropolis!"

"That is why you spared the girl?"

"Yes. Call off all the robots and command them to bring the remaining lives to me. I will judge whether or not they live and how they will serve me."

"As you command!" Metal took off to the control room. Eggman walked outside of his office and into the Main Room, the Death Egg's Eye. There was a banging and crashing coming from outside the side door. The door was broke through and Tails stood there.

"Eggman! You'll be stopped!" yelled Tails.

"Au Contraire, my deformed, little, friend! Guardbots! Intruder!" Hatches in the ceiling were opened, and two robots fell out behind Tails and picked him up.

"Hey! Let me go you bastards!"

"Take him to the cells." The robots bleeped, signaling the confirmation of the order. Tails struggled to break the grip of the robots.

"This isn't going to go on forever, Eggman! You'll be stopped!" at which point the door closed behind Tails.

"Ah, how I love having power!"