Undyne gives the protagonist undyne letter ex as a replacement if the protagonist throws the original letter away.
Slide the letter under the door undertale.
Jump back on the ferry and go back to the hotland with dr alphys lab.
Go to hotland and into the lab door slide undyne s letter under and complete the date with alphys.
I have the ex one becuase i was dumb and dropped it the door opens.
You sure you have the letter.
If your inventory is full you can go back to snowdin and into papyrus s house to get her letter assuming the inventory has a space left.
After the protagonist delivers the letter alphys engages in a date with the protagonist.
Undyne letter ex cannot be thrown away or sold at the tem shop.
Unfortunately undyne didn t sign it so alphys will think this declaration.
Head back to mtt resort and undyne will call with a favour to ask.
All you can do is slide the letter under the door.
Undyne s letter is a letter that undyne gives to the protagonist to deliver to alphys in a true pacifist route.
J ai du mal à traduire slid under your door comme he slid the letter under my door est ce qu on emploie le même verbe to slide.
I m pretty sure that s not supposed to happen.