What do I put under the door in the hotel?

Question

What do I put under the door on the far right of the hotel in Undertale?I have tried the pancake thing shaped like Metatton's face but it didn't work.

Answer 1

You can push a lot of things relative to the Annoying Dog, as it is suspected he is the character behind the door.

• A Dog Residue. The person behind the door will just give two Dog Residues.
• A Hot Dog. He will then give you a Hush Puppy.
• A Hot Cat. He won't really take it, but won't take anything in your inventory until you have that on you.
• A Dog Salad. He won't give you anything for it.