ROMANCE WALKTHROUGH

You will need to follow the general guide: link

UNDERSWAP SANS' ROUTE

Sans does not care about your SOUL TRAIT, but he will only be interested in purely optimistic SOULs.

START:

You have a good feeling about it. You can't explain it, but something about the lake calls to you.

CRYSTAL CAVERNS:

What a beautiful sight! You're in awe.

Oh! Well. You'll be okay! You're certain you can figure this out.

That's okay with you. You're happy with who you are.

You warmly thank Asgore.

Hug Asgore.

You cheerfully reassure him you'll be okay, and you'll definitely see him again.

If you selected all of the above you will get a line that reads: You have chosen to be positive and warm at every opportunity. What a brilliant heart you have.

SNOWDIN:

It makes you happy. You're enjoying yourself.

Okay. That was kind of fun.

You beam at him and warmly greet him.

His eyelights expand as a blue hue appears underneath his sockets. You can't look away from him. ♡

You feel tongue-tied and shy. You look away. ♡

You must leave & spare Cinnamon & Bunbun next. THEN go to Violet & Poppy to rescue them.

You hold up your hands and smile warmly at them. You tell them you want to help.

Yes! You would love it if they could introduce you as someone nice and non-threatening to Sans. ♡

IN SNOWDIN TOWN:

You notice Cinnamon further down the path.

Yes, you will deliver it.

WATERFALL

Forced encounter with Aaron. Answers are: Queen Toriel → Yellow → Light knight & Dark prince → Choose Sans

AFTER Fighting Alphys return to the flower field to meet with Sans. 

Return to the fork in the road (North West)

Left (North East)

Go down the flower path (South)

Chat with Sans

You are locked into Sans' route all the way. Just follow the standard walkthrough to not get BE'd in Hotlands.

UNDERSWAP PAPYRUS' ROUTE

Papyrus will only be available to the following SOULTRAITS: Bravery, Determination, Fairness, Kindness, Patience, and Humility.

CRYSTAL CAVERNS

There are no vital choices for his route here.

SNOWDIN

You look around to try and spot the source. ♡

You stare up at him with wide eyes. ♡

Follow the standard guide to Snowdin town. 

IN SNOWDIN TOWN

You notice Cinnamon further down the path.

Yes, you will deliver it.

WATERFALL

Left (North East)

(Do the flower path with Flowey then when done. . .)

Continue forward (East)

Sure. You want to swap stories with Mr. Riverra. 

Sweet = Short / Sad = Lore

You go over to Papyrus. 

Okay. You agree to pay Papyrus 10G.

You stick out your tongue in response. ♡

You enter the Wishing Cave.

Follow the guide to get to Aaron encounter. 

Forced encounter with Aaron. Answers are: Queen Toriel → Yellow → Light knight & Dark prince → Choose Papyrus

You are locked into Papyrus' route all the way. Just follow the standard walkthrough. 

UNDERSWAP WINGDING'S ROUTE

He is only available to the Wisdom SOULTRAIT. YOU DO NEED ALL FLOWEY INTERACTIONS TO HAVE A DIALOGUE CHOICE IN HOTLAND! FOLLOW THE GENERAL WALKTHROUGH!

START:

After the choice "You're going to Lake Ebott."

You feel a call from your heart. You need to go. ♡

CRYSTAL CAVERNS

There are no vital choices for his route here.

SNOWDIN

Ignore it. It's not the gaze you care about.  ♡

WATERFALL

Forced encounter with Aaron. Answers are: Queen Toriel → Yellow → Light knight & Dark prince → Choose "the one who speaks in hands" ♡

HOTLANDS

Follow the Hotlands guide. DO NOT DROP THE NOTES!

When talking to Flowey at the start: Yes. Yes. Yes. Yes. Yes. Yes. ♡

You are locked into Wingding' route all the way. Just follow the standard walkthrough.

UNDERSWAP FLOWEY ROUTE

Soultrait does not matter, but kindness / patience can auto-win dialogues

PROLOGUE

There are no vital choices for his route here.

CRYSTAL CAVERN

Follow the main guide:

Right. 

Far left. (South West)

Begin Encounter.

Dance with Migosp.

Look away and Ignore Loox.

MERCY: Spare Loox & Migosp

Forward. (North)

Forward (North).

Left. (South West)

Smile sweetly at the monster. Compliment its eyes.

Compliment the monster's smile.

Compliment the monster's voice.

Leave.

Forward. (West)

Left. (North West)

You smile at him. You tell him you only want to talk.

IF KINDNESS TRAIT OR PATIENCE: You keep smiling at Flowey. You tell him you want to be friends. - This is an instant dialogue win. Skip to “Leave”. 

ELSE

You ask him if he's okay.

You insist you're asking out of concern, not mockery.

You teasingly reassure him that you can indeed find it in your saintly heart to forgive him.

Leave.

SNOWDIN

There are no vital choices for his route here.

WATERFALL

Left (North East)

Go down the flower path (South)

You approach Flowey.

IF PATIENCE TRAIT You sit down beside Flowey and patiently smile at him. - this is an instant win for the dialogue and can skip to 

ELSE

You’ll do your best! / Maybe so. However

Because the two of you are on the way to becoming best friends / Because. . . You can’t think of a reason

You want to be friends with the monsters / You want to get along with monsters. 

No. You want to keep all the notes you have. 

Follow the main guide

Forced encounter with Aaron. Answers are: Queen Toriel → Yellow → Light knight & Dark prince → Choose Flowey to initiate romance.

HOTLANDS ROUTE

Show Flowey the note.

Answer honestly.

Follow the main guide until you reach the room with the computer.

When you get to the computer in the labs that asks for a password enter (obtained on WD's route): xY07BB13Zf16

In order: SOUTHREADS, PUPPET, ARTIFICIAL SOUL

You have to do the Artificial Soul last because it'll force you to end your time on the computer afterward. 

If you're on the right track, ending page of Hotlands will read: You gave him an idea.

You're now locked and loaded into the Asriel route. Follow the general guide.