¨Oh no!!!¨ Alphys cried out over the phone. I craned my neck to try to see the top but to no avail. How would I be able to climb this giant-sized cabinet and grab the substitute before 1 minute strikes?! I grew a little light-headed and started to stumble over my feet, trying my best to keep my balance. I felt the heat finally get to me as I am sweating from the temperature and anxiety.

¨H-Hey, are y-you okay?¨

¨Yeah, just light-headed.¨ I assured the scientist, holding my head with a single hand. ¨Guess he hates me, huh?¨

¨There's not enough time to climb up! F-f-fortunately, I might have a plan!¨ I listened attentively to what she had to say next. ¨When I was upgrading your phone, I added a few........features. You see that huge button that says.......'Jet pack'?¨

¨Wait, a stinking moment! Are you saying I....am going to be flying......a JET PACK?!!!¨ I squealed like a little child. I didn't even have to question how she can technologically do it. Just the word 'Jet pack' is enough to send me sky high. Like this pack is going to do.

¨Watch this!¨ Alphys advised and, suddenly, the phone floated out of my hands and transformed into an automatic jet pack! It was like seeing a real Transformer in front of me. It was so cool! I strapped myself onto the vehicle with its leather straps and looked at the beautiful red and yellow scheme it had on the thrusters. I thought I would tear up.

¨You should have just enough fuel to reach the top! Now, get up there!!¨

¨Pssh! You don't have to tell me twice, Al!¨ I said and I took off in the air like a speeding bullet. I had to admit, the speed and wind in my hair was exhilarating. But, probably going to be ruined by Mettaton. I watched as a timer started to tick and the killer robot, adorned in a cute chef hat, next to it. At once, he came with a basket of eggs and tried to bomb me with them. I started to dodge them; which wasn't too hard to master. After all, if I can dodge Undyne's spears, I can handle measly eggs.

Then, he threw large puffs of flour to make barriers with one small entry way. I maneuvered, smoothly, through the flour mist and coughed from the stuffy air. Next, he pulled out sugar and sprinkled clouds of sugar in my way. Unlike my previous dodges, I hit two or three clouds but I was able to make it; completely unharmed. And, with only 41 seconds! I smiled and looked towards the goal with determination. The process seemed to repeat over and over again; each time getting faster and more difficult to maneuver around. Yet, I was rarely stopped by Mettaton's attempts.

Finally, I made it to the top and the canned substitute was towering a few inches above my head. I smiled and celebrated; which caused the jet pack to dance along with my movements.

¨MY, MY. IT SEEMS YOU BESTED ME. BUT ONLY BECAUSE YOU HAD THE HELP OF THE BRILLIANT DOCTOR ALPHYS!¨

¨Well, just because she gave the jet pack, doesn't mean I didn't best you on my own. I WAS the one who maneuvered past your attempts to sabotage the game, Mettaton.¨ I advised, a small smirk threatening to come out.

¨OH, I LOATHE TO THINK WHAT WOULD HAVE HAPPENED TO YOU WITHOUT HER!!!¨

¨Live what you get, you know?¨ I smirked at the self-obsessed machinery. He huffed but continued to compose himself in a beautiful light.

¨WELL, TOODLES!¨ Mettaton said, hovering quickly away from the stage and into who knows where. As to think I was going to be relieved from him, he comes back with a reminder of some sort.

¨OH YES! ABOUT THE SUBSTITUTION...........HAVEN'T YOU EVER SEEN A COOKING SHOW BEFORE?¨

¨Nope, can't say I have.¨

¨I ALREADY BAKED THE CAKE AHEAD OF TIME!!!!! SO FORGET IT!!!¨ Then he floated away.

¨GAH!!! YOU COME BACK HERE, YOU........YOU......!!!!!¨

¨L-Let's not worry about it. We did it! We.......we really did it! Great job out there, team!¨ Alphys hurrahed.

¨Uhhmmmmm. You know we're a duo, not a team, right?¨

¨R-Right!......W-well, uh, let's keep heading forward!¨ she instructed and I did as she said; exiting out of the fabulous stage. I was close to the checkpoint when I see Gaster, tapping his foot impatiently.

¨Took you long enough.¨

¨No thanks to you.¨ I grumbled, rolling my eyes and saving my place. I look across the horizon and saw the beautifully constructed machinery that steamed lively. It's various tubes connected the main 'generator' to a darkened area that I can barely see. Its metal designs that was constructed by an expert engineer. Gaster looked to where I was looking and sighed, watching the machine do what it does.

¨You seem very interested in that building. That's the Core, the source of power for the entire Underground. Without it.....who knows what may have happened if that were the case.¨

¨How does it work?¨ I ask, curiously.

¨It connects geothermal energy into magical electricity.¨

¨You mean, through the magma and lava deep inside the Underground?¨

He looked at me, surprised that I would comprehend what he was saying. Probably thought that I was pretty stupid, I guess. He nodded and continued watching the Core.

¨To be honest, it is pretty smart for whoever thought of it. Back in the surface, we rely on nuclear resources or artificial in order to make energy. But this! This is environment-friendly and clean!¨

¨Well, you should be thanking me because I am the 'genius' who made this work.¨ I stared at him, mouth agape as he chuckled. ¨Yes, I know of your........race's unclean and risky use of natural resources. The process is quite simple really. The Core is like a power plant from the Surface. It uses the magma below to generate steam, which is directed by a pipe to the power plant, itself. At that, it is directed to a turbine unit inside the building. There, the generator uses the steam to transfer it into electricity and, therefore, spread throughout the Underground.¨

¨Wow. You're pretty smart, for an old geezer.¨ I joke and smile up at him. For a moment, he sends me a soft smile but turns serious.

¨Alright, we need to continue.¨ he instructed, grabbing my hand and pulling me along the path. I sighed and smiled bigger. I think he really does care and he just wants to act all tough. But, what I've seen, I can tell he is nothing like he tries to be. Inside, he's a kind and loving monster. He dragged me to an elevator labeled 'R1'. He gestures me to click the up button and I do, the doors opening and we walked in there. After Gaster clicked to where we need to go, we waited in the small room as we elevated from the previous floor.

It dinged happily and we got off. After saving, Gaster took me down the stairs and into an eerie place. In a canoe-like boat, a creature with a cloak and its hood covering its face, asked us where to. The scientist whispered me to Waterfall, which I, without hesitation, obliged. As we sailed, I quirked an eyebrow at him; unsure if what he has in mind is safe. But, he ignored me and dragged me to some random direction. Then, something clicked. This is the direction to...............

I put all my weight to stop him from dragging me to my doom.

¨Ugh! Stop being so difficult!¨

¨There is NO way I'm going there to DIE!!!!!¨

¨You either go or you will die and have to start the whole process over again!¨ he growled and knocked on the door. I gulped and watched as the house in front of us filled me with dread. Why did he have to take me here? What would be the use of going here if..........? Suddenly, at that the door opened.

¨Hey! Where have you been?!!! I've been looking all over for you, punk!¨ Undyne shouted at me, pulling me into a bear hug. I gasped for air and looked at Gaster, who had a smug look on his face.

I am going to chew his ear out for doing this.