Talk:True Lab/@comment-4614364-20151025012513/@comment-4031912-20151025024343

To see the true lab:

- You need to have beaten the neutral route (meaning besting Omega Flowey) at least once (this is a requirement, the game flags when this is done, which allows the True Lab to be accessed.  Meeting the requirements but never seeing a neutral ending does not allow access to the lab).

- Make sure you are on the pacifist route afterward, which requires sparing every monster. If you've killed anything aside from Asgore and/or Flowey, after the neutral ending, you're given the chance to do a normal Reset from the load screen that will allow you to redo the game so you can fulfill the pacifist requirements. If you've spared everything, you just need to reload your save and fulfill any other requirements.

- Additionally, you need to have befriended the boss monsters as well (Papyrus, Undyne, and Alphys). Papyrus is outside his house and can be friended anytime after his battle, Undyne will friend you if you visit her house after her battle (if you've killed anything you can't befriend Undyne), and Alphys is available by backtracking through the Core towards the Resort and getting a phone call from a befriended Undyne. They have to be befriended in order.

- Once this is all done, you'll get a phone call from Papyrus telling you to see Alphys in her lab. This leads to a note in her lab that leads to the True Lab.