This is the fourth area in UNDERTALE. If you are reading this and you have not completed the other areas or guides first, I suggest you don't read ahead. Go back to whichever guide you are on and stop reading ahead.
Continuing From Waterfall
If you remember the Waterfall guide, we stopped in Hotland. You should be at the save star. It's in the room after the one you finished Undyne's chase in. The royal guards at the top aren't important. They also don't realize you are a human. Don't let them realize that.
Continue to the right, and there is a lab, which the save point describes (if you save, which you should). Go in. It's really dark in here, so continue going to the right. After getting to one end of the lab-area (???), a dinosaur monster walks out of a door near a conveyor belt. The lights turn on and she walks towards you before realizing that you're there. She freaks out before explaining she wants to help you, and that her name is Alphys. She then remembers she made a robot named Mettaton, and that he has anti human features. Uh oh. She says you probably won't see him, before the ground shakes. It shakes more and more before Alphys says "Oh no."
Oh no.
Mettaton
You hear a odd voice byte and the text "OHHH YES!" A robot will appear through a hole in Alphys's wall. Yep, that's Mettaton. He's a freaking rectangle. ON WHEELS. With STEROIDS. Anyways, he says Welcome to his quiz show and says that there is one rule. "ANSWER CORRECTLY..."
"...OR DIE!"
He then starts the quiz show, which is relatively easy. Alphys gives you the answer, and I have the list of answers. Here it is (note: the answers are in Bold text)
What's the prize for answering correctly?
[A] Money
[B] Mercy
[C] New Car
[D] More questions
What's the king's full name?
[A] Lord Fluffybuns
[B] Fuzzy Pushover
[C] Asgore Dreemurr
[D] Dr. Friendship
What are robots made out of?
[A] Hopes&Dreams
[B] Metal&Magic
[C] Snips&Snails
[D] Sugar&Spice
Two trains, Train A, and Train B, simultaneously depart Station A and Station B. Station A, and Station B are 252.5 miles apart from each other. Train A is moving at 124.7mph towards Station B, and Train B is moving at 253.5mph towards Station A. If both trains departed at 10:00 AM and it is now 10:08, how much longer until both trains pass each other?
[A] 31.054 minutes
[B] 16.232 minutes
[C] 32.049 minutes
[D] 32.058 minutes
How many flies are in this jar?
[A] 54
[B] 53
[C] 55
[D] 52
What monster is this? (Half of Froggit's face is shown, zoomed out it reveals that it's Mettaton wearing a shirt with Froggit's face on it.)
[A] Froggit
[B] Whimsun
[C] Moldsmal
[D] Mettaton
Would you smooch a ghost? (The timer increases from 30. Just choose one)
[A] Heck Yeah
[B] Heck Yeah
[C] Heck Yeah
[D] Heck Yeah
How many letters in the name Mettaton? (The number of "N"s after Mettaton increase by a ton and the numbers in the answers increase by a ton)
[A] 11
[B] 6
[C] 8
[D] 10
After enough questions are asked, he will ask a question about Mew Mew Kissy Cutie (gross). Alphys will answer for you before realizing that Mettaton saw her answer. Mettaton will ask who Alphys has a crush on. If anything, choose Undyne. Her reaction is the funniest. After a few words, Mettaton flies off and Alphys says, "Well that was certainly something."
Dimensional Boxes but PORTABLE
So, continue like that never happened (of course, as you can tell by the title of this section, Alphys stops you, upgrades your phone, and gives you two Dimensional Boxes, one of which has all of your stuff in it) and proceed to enter through the eastern exit.
Upon exiting, Alphys proceeds to update her status a lot of times while you are walking. Most of it is junk. Ignore and continue by going to the next room. The next room is a bunch of conveyor belts that take you forward. Spare any enemies you encounter and continue until you reach the “Magma Chamber”, which will have a save star named Magma Chamber. Figures.
This room has a ton of vents that launch you over to different islands. At the southeast end of the room, there will be a path leading down to a room with a rapidly-switching vent, and a Burnt Pan on the left. You have to step on the vent when it changes to left so you can get the Burnt Pan. This item, unlike any other, heals you for 1 HP every turn in battle, so finally, not only are you getting it for completion, but also, for healing. How nice! Step onto the conveyor belt to leave the area. Go to the northern path.
Alphys Guides You
So when you reach the room at the north of the Magma Chamber, Alphys will tell you about the lasers ahead. Don’t move through the blue ones (which are moving) and move through the orange ones (which aren’t moving). How ironic. This should be easy, unless you have issues with quick-time reaction puzzles.
In the next room, there are two puzzles on the left and right, where you have to shoot the opposing ship. There is a laser blocking the left side, which Alphys proceeds to remove. Here are the combinations for both puzzles:
- For the Left Puzzle: Move the boxes left, down, then left, and then shoot twice
- For the Right Puzzle: Move the boxes up, then right, then shoot twice
Once both puzzles are complete, the northern door opens up. Proceed.
Cooking With A Killer Robot
The next room is a short pathway with vents that blast you all the way to this really weird looking path. Follow the path and you end up in a dark room. Alphys calls you and turns on the lights before saying "Oh no."
Yep. That's right. You're in ANOTHER quiz show by everyone's favorite murder bot. He says that you are baking a cake, and to go gather ingredients. This should be easy, however, because all the ingredients are in sight. Grab them, then interact with the counter to start. Wait, Mettaton says there's one last ingredient. Your Soul ...
Uh oh.
Luckily, Alphys stops the mass carnage before it happens. She suggests Mettaton use a vegan ingredient instead (which he is ok with, apparently) and Mettaton says there's one on that counter over there. Huh. That was easy. Go over to the counter and the counter will rapidly grow taller, while Mettaton will say that you have to get the ingredient in less than a minute. Luckily, Alphys has a plan (Said plan being that she installed a jet pack on your phone. How does THAT work?). To get to the top, dodge all of Mettaton's attacks on the way up, and he will declare he has baked the cake ahead of time, letting you pass. This robot...
Continue to the right and you will see a large view of the CORE. Alphys tells you not to worry, but to be honest, Mettaton may not be the hardest, but he's certainly the most annoying. So worry if you want, remember, this is a strategy guide. You wouldn't be reading this if you didn't want a plan on how to beat the game.
Second Floor
Continue again to the right and go up the elevator. If you want, you can call Papyrus to hear him make a joke about spaghetti. When you reach the second floor, head to the left. In the next room, Sans is selling hotdogs. To be honest, the hot dogs aren't that bad as healing items (and attempting to buy 2 gives you a Hot Cat, which is a good healing item in general), but if you want to save your money for the healing items at MTT Resort (which, by the way, are really good for Mettaton's fight), then don't buy the hotdogs. If you couldn't care less about the healing items or have a full inventory, talk to Sans and buy some hotdogs. When your inventory is full, keep talking to him to have him stack hotdogs on your head. Funny, but not important to the story whatsoever.
The next room features a four-way intersection. Where's the northern path? It's invisible, and it leads to an easter egg miniboss. If you are playing this on October 10th, wait until 8:00 (or just straight up go in there at any time on the Switch) and interact with the sign to start the most hilarious miniboss yet!
So Sorry (OPTIONAL)
So Sorry is a relatively easy miniboss (compared to the others) and frankly, is really only good for the money it gives. However, killing him leads to the Pacifist Route you are doing being aborted and you having to reload from your last save point. His attacks are:
- Throwing pieces of crumpled up paper
- Swinging his tail back and forth
- This is similar to Asgore's trident attack in which he does the same thing.
- He does both aforementioned attacks at the same time around turn 7 or 8
- He draws Doodlebogs, which throw incoherent doodles at you
Best way to end the battle is to keep surviving for 8 turns. If any Doodlebogs appear, use the Draw act and they immediately disappear. If you want gold, attack him for 8-10 turns and then spare him, and you will get 372G at most. When he disappears, go back down to the intersection, go down the southern path, and pick up the Apron (which is yet another item that heals you in battle. Ka-ching!) and then go back to the intersection and go right.
Second Floor (Continued)
The next room involves quick-time reactions from you, the player. You have to hit the buttons while riding on the conveyor belts. Of course, Alphys calls you right as your about to hit the last button, therefore throwing off your rhythm. She then deactivates it herself and laughs sheepishly. Continue. The next room consists of an annoying puzzle in which you must use the steam vents to get across. You must go in this order: Left, Down, Down, Left, Up, Down, Up. Up, Left. Once you get through that, go through the next room only to be confronted by the Royal Guards.
Royal Guards
The Royal Guards aren't that hard to beat. And their attacks are even easier. First, clean the second Royal Guard's armor, then interact with the green projectile 5 times on the bullet board. After that, 02 will take his armor off, genuinely disturbing you and also, by extent, making 01's attacks easier to dodge, as they become really shaky. Then, use the Whisper act on 01, and a cutscene will play. After the cutscene, use the Spare option and you win! You also get 100 gold.