Dr. Alphys is a female, reptilian monster that lives in the lab in western Hotland. She is the incumbent Royal Scientist, a position she was awarded by Asgore after the disappearance of her predecessor. Alphys is a nerdy, shy recluse with a fondness for human anime and manga. She has crushes on multiple characters but struggles to communicate her feelings. Alphys is filled with guilt and insecurities about herself and her accomplishments. After she accidentally created the Amalgamates while experimenting with determination, she told nobody and became deeply depressed and remorseful.