Talk to Alvin to start, then go to Noelle, "harvest" the gray present on the far left screen near the fence, interact with the yellow cat above the snowman, take the knife from the snowman, top screen interact with the rock next to the right lamppost, far left screen follow the footprints into the trees and follow the map layout until you make it into the cave, interact with the door twice or the wall next to it, interact with the stone, hit the heart thing and leave the cave, from here on out interact with the telephone next to the inn if your confused on what to do. Don't get the present next to the snowman for now. Get the present next to Alvin to start Toriel. For the Toriel route, make sure to exhaust the dialogue with all the characters. Do Undying last. Otherwise, it might bug out on you. To start her route, get the present next to the snowman and give it to her, do the Konami code on the arcade screen to cheat. Talk to Catty to get blueballed.