Hotland - Undertale Guide - IGN (2024)

This page takes you through the Hotland area in a neutural walkthrough for Undertale. It is recommended you complete a pacifist run first using our Pacifist Walkthrough if you want to experience all the endings.

After making your way through Waterfall you can finally start on the Hotlands.

From the first save point in the Hotlands, head east to find a large building marked 'LAB' and go inside.

Everything will be too dark to inspect but you'll notice a screen playing yourself. Keep going east and Dr Alphys will emerge from a room and turn the lights on. She is surprised to see you and will make awkward conversation before offering to guide you to the castle.

Mettaton Part 1

As she's explaining her robot that might cause problems, it of course busts into the room and will start a sort of quiz show battle - on your off turns what you do doesn't matter.

Dr Alphys will signal the answers to you with her hands, so keep an eye on her sprite. Or alternatively, the answers are: D, C, B, D, A, D, anything, C, and A.

Once the battle is over Mettaton will leave and Dr Alphys will upgrade your phone as well as sign you up to a social media whether you like it or not. Continue East and exit the lab.

You'll be lucky enough to be constantly interrupted by status updates as you go.

At this point, you may start to encounter new creatures:

The path is fairly linear for a while,so continue on it past the conveyor belts north and you'll come to a save point. You can't go north here so turn east and step on the arrow to be launched across the gap.

Use these squares to make your way east and then walk south to find a quickly switching square and conveyor belts. Step on it while it's facing left to claim the frypan or 'burnt pan' - it's a weapon with an attack value of 10 which isn't useful on a pacifist run BUT it also makes consumable items heal 4 more HP.

There's nothing to the right, so head back up and take the squares north and then west to get to the next area.

Alphys will finally call you and explain that blue lasers need you to remain still in order to not get hurt and orange lasers need you to be moving to pass through safely - use her advice to make your way through the lasers and you can use a switch at the other end to turn them off if you want to go back.

You'll come to another crossroads and Alphys will explain you need to solve puzzles to the left and the right before the northern door will open. Go right first as she instructs into a building.

Block Puzzles

These puzzles have you moving square blocks out of the way so you can shoot the opposing arrow. This puzzle gives you two bullets so you only need to move one block out of the way. Move the blocks down and push one to the side, shoot the block and use your second bullet to get the arrow.

Now make your way to the left building, Alphys will remove a pesky laser in your way to let you through.

This one is more complicated, shuffle the blocks up, left, down, and then fire through one block and once more to shoot the arrow. Now you can head back to the northern door and pass through, once you do so continue east until you find a dark room.

METTATONPART 2

Alphys will hack the lights to turn on only for you to discover you're in a cooking show with Mettaton.

First you'll need to gather the ingredients behind you-you can carry all at once so just get them all and bring them back.

Let the scene play out for a while and you'll find yourself wearing a jetpack to scale an impossibly high cupboard and get some substitute human soul extract. A timer will start and you'll need to dodge the ingredients Mettaton drops from above you. Don't stress too much as you are given ample time to reach the top.

Mettatonwill leave at this point and you can continue east to a new save point before heading further eastward.

You'll come to an elevator - go inside and choose "RightFloor 2", exit and head west where you'll see Sans again. You can buy hotdogs from him if you need more healing items, but if not continue west.

At this point, you may start to encounter new creatures:

As you make your way west continue to enjoy the social media updates. You'll see the road fork to the south, follow the path to pick up the 'Stained Apron' - it's an item with a defence of 11 and it heals 1 HP every other turn. After equipping it, head back north and west again.

Dr Alphys will call you just before you can get on the conveyor belt to explain the puzzle. You need to hit the buttons as you go past - she'll interrupt you at the third button but it won't matter.

Next up is some more launch pads but this time they are accompanied by switches which will change the way many of the arrows point.

Use the first switch to go left then down, back up then back down, down, left, up, up, left to cross the puzzle - once you're clear continue west to find another save point.

As you follow the path you'll be interrupted by some guards you will take you to safe place from the human - or that's the plan until they realise you're the human and begin a mini-boss fight.

Royal Guards

This boss fight is pretty specific and while not difficult, it would be hard to guess the right combination to clear it peacefully.

Choose to act and skip over RG 01 and go to RG 02. Choose to clean his armour - this will present a long vertical battle area with green floating armour piece. Run into it around 5 times and he should take his armour off - if you don't get it enough times you'll need to clean him again.

Now you need to choose RG 01 and whisper to him. He will confess his feelings to R2 and you can spare them so they can leave to have ice cream, ending the battle.

Go back and save if you need to get your health back, if not, continue along the path to another dark room, which can only mean...

Mettaton Part 3

Once Alphys turns the lights on for you once more, you'll discover you're in another one of Mettaton's TV shows. This time it seems you are a reporter on the scene.

Once able, move around to the first item you find. If you go up and to the right a bit you'll come a basketball but any item is fine as they are all, actually, bombs. A timer will start, but don't worry about it as it can't ever run out.

Now you'll need to diffuse all the bombs by using the handy bomb diffusing app Alphys put on your phone. Interact with an item and then in the battle screen hit the button while the item is in the zone and turns green.

A good way to get them all in one go is to head south first, then west past the lasers, then back east up the conveyor belt and north and across to grab the others. Dr Alphys will contact you once you have only the glass of water left to explain it's being held in place so you can grab that one and finish the job.

Mettaton will leave once this is complete so you can keep on heading east.

Spiders

Keep following the path north and then west until you come to an elevator. Take it to 'Left Floor 3' and exit to head east to another spider bake sale.

Here you can once again purchase donuts or cider from the webs but this time they are 9999G as opposed to around 7. You probably can't afford this and you (hopefully) still have the one from back in the ruins so keep going.

Next are more vents with launchpads and more block puzzles. Use them to go south, past some conveyor belts and lasers, to complete the first puzzle.

For this puzzle you only have one bullet, so you'll need to clear a path to shoot the other arrow. You'll want to put two of the blocks in the right spaces and the other two in the left space, then move the left space blocks only one to the left instead of all the way to the end to complete the puzzle. (Left, left, left, up, left, left, right, shoot.)

Now use the launch pads to go North to the next puzzle. This time you want to fill the left spaces and have one block on the right to clear a path.

Now use the launchpads to go east, out the door, and to the next save point - definitely use it then keep heading east to a spider corridor.

As you move through the spider corridor you will become trapped in some thick webbing where Muffet has trapped you.

Muffet

This battle can go down a few different ways depending on what you've done up until now.

If somehow you've spent enough money by buying a spidery treatin the Hotlands you won't even have to do the battle and will just be let past.

If you have still have your treat from the ruins, choose to act and eat it in front of her. She'll accuse you of stealing until she receives a telegram from the spiders in the ruins which will stop the battle.

If you don't have a treat this battle becomes difficult.

Muffet will turn yourheart purple which means you can only move by snapping to the three lines. She'll send spiders along them to attack you, donuts which will bounce around the square and croissants which boomerang back.

Sometimes her pet will appear and chase you upwards while you still have to dodge spiders.

Once you successfully avoid her pet for the third round she will let you go and the battle will end, or you can keep fighting to finish her. - exit to the east.

MettatonPart 4

You'll come up to a castle of some kind and Mettatonwill appear and start singing a romantic song about how you must die before dropping you into a hole.

Down here you'll see a familiar puzzle. Don't worry too much and just move across it best you can - Alphys will jump in to help you at the last second regardless of your success, then Mettaton will battle you.

Alphys will call you mid-battle and tell you to hit the yellow button on your phone. Choose the act option to do so then shoot Mettaton a few times and he will run away.

After another phone conversation with Dr Alphys, keep going east and then North to get to the resort.

MTT rESORT

Out the front of the resort you'll see Sans, agree to get some food with him and he'll tell you an interesting story which makes him a much scarier character than before.

Exit the restaurant to the east and you'll be inside the main area of the resort where you can save.

Here you can complete small sidequests for the people around if you want to earn extra money. If you go back out the front and around the east side to the back you can buy weapons, armor, or a key that will open the house next to Napstablook's in the Wetlands but none of this is necessary.

Instead head north through the main passageway to go to the core.