Test Creeper

Prologue

"Mwahahahahaha," Entity 303 laughed evilly as the last test subject had spawned in its cell. He now had three mobs in his possession; A zombie, a skeleton, and a slime. Finally, he was a step closer to achieving his goal; Overthrowing Notch and destroying Minecraft. "Mojang doesn't suspect a thing," he mused. But right as he turned around to begin testing, to his surprise, he saw that Notch was standing directly behind him.
"WOAH, uh... Hi sir- um.. I was erm- I was-" Entity 303 stuttered. "I- How are you doing? What brings you here?" Notch looked infuriated. "You know exactly why I'm here, 303. I know what you've been up to. You can't hide it," Notch said, furiously. That blasted Enderman. He KNEW there was something up with its constant peaking. He thought it was simply just curious as to what was happening, but now he realizes that it was actually spying on him FOR NOTCH. He should have killed it the moment it teleported into the lab that first time. Well, it's too late for that now. It already told Notch everything it saw.
"How much do you know," 303 questioned. Notch sighed disapprovingly. "Enough," He said. "303, you're fired." 303 was speechless. No. There's no way. HE CAN'T FIRE ME. HE CAN'T! ALL OF MY PLANNING. NO! Notch turned around to face the test cells. He destroyed all of the occupied test cells and the mobs within them. He turned back around to face 303. Entity 303 was infuriated by this. I WILL END MOJANG IF ITS THE LAST THING I DO. "Entity 303, Your lab is destroyed. Your test subjects are gone. You are no longer able to do any-more tests and are also hereby BANNED from ever entering this realm," Notch announced. Notch teleported himself away.
303 was now alone. He stood there in shock, as he processed what had just happened. He stood there staring at the broken test cells and crater. The lab was destroyed, the test subjects were dead, and Notch had fired him. Today simply was NOT a good day for Entity 303. Whelp, time to leave before Notch comes back to yell at me. Good thing he had a backup lab in another realm. 303 teleported to the realm. It had been awhile since he was last here. He wondered how Hades was doing. He had heard that his scientist and her test subject betrayed him for a stupid player. He didn't have enough time to teleport to the Corrupt Castle to talk to his old friend, as he heard a small hiss coming from the lab's empty test cell. Or at least the cell he thought was empty. When he peered into the cell, he was surprised to discover a small, scared-looking creeper was trapped inside.
Entity 303 smiled to himself. Yes. This will suffice. It's better than nothing. At least I have SOMETHING to work with. "Why hello, little one," 303 cooed. The creeper tilted its head. "Yes, yes. You will do, quite nicely. A little bit smaller than what I would like, but I will have to make do." 303 wore a wicked smile. The creeper was now trembling. Entity 303 was unsure why it hadn't exploded yet. "This is no ordinary creeper," He realized. Also, is that fear and curiosity I see in its eyes? 303 shook his head and laughed. Creepers don't have feelings. They are just monsters. So... why did it seem like this one did?
Whatever. No need to ponder over this nonsense. It's a creeper. It's a mob. A MONSTER. Mobs don't have feelings. Especially monsters. And even if this one DID have feelings, so what? I don't care. It's just a creeper. Feelings or no feelings, It's my new toy and I'm going to do whatever I want with it. It's MINE.
The creeper backed up in the cell, as if it knew what 303 was about to say. "Hello, creeper," Entity 303 said. "I'm your master now."