You start up Lux by accident while shifting through Sans' workshop. It looks like a TV head of some kind. It also seems to have mimicked Sans' fashion choices. You're about to dismiss the robot as it gets up, whirring.

LOADING....
(HELLO WORLD!)
Please confirm this is you, 'Legendary_Fartmaster'...
...Because if someone's saying "Legendary_Fartmaster" as your name, I'm 95% certain it's you, Sans....
Playing: (Laughtrack.mp4)

It shows a analog recording of monsters laughing.