Flip

Flip is a super mutant stationed in the Mariposa Military Base around 2126. He is one of the two prison cell guards, along with Krupper. Unlike Krupper, the Vault Dweller can speak with Flip even if he is not wearing robes like the Children of the Cathedral, although he will immediately attempt to escort you to the Lieutenant. If you are wearing the robes, he will tell you to go to the control room. Failure to comply will result with him attacking you.

If you go into the cell that holds Sarah, Flip will scream, "Don't you come near her! I'll kill you first!" It is very clear that Flip and Sarah have a romantic connection as a product of him watching over her. If you kill Flip, Sarah appears very upset.

Appearances in games
Flip appears only in the first Fallout.