To prevent Sam from winning the auction, you must have completed one of the following requirements: : Blackmail the bank director. Badass Route : Dominate the bank director. Combat Route : Keep Vinnie alive.
[Ren'py] Luna's fall from grace[FREE] - The Fuwanovel Forums
: Accept help from "D.Luna," though she will require something in return later. Route Requirements
Accessing different "crazy" or alternative options later in the game (such as the Hero or Badass sub-routes) is determined by Luna's mental state and specific early-game encounters:
: If you asked for her help to kill Sam in Chapter 1, it unlocks a specific scene later in Chapter 3.