You decided to follow Sans and Papyrus to see if you could get to Dogamy and Dogaressa before the skeletons did. You weren't entirely sure how to save them, but you were determined to try. It took a little bit, but you caught up to Sans and Papyrus. Flowey complained all the way, but once you got near the brothers, he shut up.
There were puzzles in the way. Papyrus solved every puzzle, while Sans would take a quick nap. You payed careful attention to how Papyrus solved each puzzle, and as soon as they were out of sight copied him. The first puzzle gave an electric shock it you put a foot in the wrong place and the second involved some sort of snow golf.
The third "puzzle" (if it could be called that) was just a plate of spaghetti. You walked up to eat it, but Flowey stopped you.
"Don't eat that! That spaghetti is poisoned! Papyrus put those out all over Snowdin to kill any humans. He thinks that no one could resist his spaghetti, but to be honest he's not a very good chef."
"Thanks. I owe you one." You say shakly.
You continued on to face a couple puzzles where you had to turn all the Xs to Os and a confusing puzzle with a lot of different rules. Finally, you came a bridge with a spiky ball, two spears, a dog, a flamethrower, and a cannon. Everything was swinging and firing all over the place. You were curious to see how the duo made it past this one.
"deactivate." Sans said, bored.
Everything moved away from the bridge, and the skeleton brothers crossed.
"ACTIVATE" Papyrus said as soon as the two crossed.
Everything went back to swinging and firing.
As soon as the two were out of hearing distance, Flowery spoke.
"It only deactivates if its someone from the Royal Guard say deactivate. Which we aren't."
You stood, dumbfounded at what to do before you heard a voice behind you.
"didn't you're mothers ever tell you two it's rude to follow people?"
You're heart stopped. Not now.
You whipped around. Sans smiled a creepy smile.
"wow. you really want to have a good time. well. consider this the last time i help you. pap is catching on." Sans smiled even more. "i'll get the dogs to the outskirts of the underground. papyrus will never find them there. we are powerful, but every power has limits."
"How do I know you won't just leave and kill Dogamy and Dogaressa?" You say, suspicious.
In response, Sans placed his hand on your shoulder. Suddenly, you were deep in the forest. Dogamy and Dogaressa were shaking, staring at Gaster Blasters two inches from their noses. Sans told you to hide behind a tree, and you complied.
Sans put a hand on Dogamy and a hand on Dogaressa and disappered for a moment, then returned without the dogs.
"Did you just teleport?" You asked, curious.
"yeah. don't tell anyone i can do that… or you're going to have a GOOD TIME" The little lights in Sans's eyes died.
You were suddenly filled with dread. You remembered how easily he had depleted your health - with a single hit. You decided to run.
Unknown to you, Sans smiled, then frowned, then smiled again.