Almost forgot to mention some more ideas I had for unlockables. MODEL VIEWER (View 3D Models for characters, vehicles and items encountered during the game,) MUSIC THEATER (Hear music from the game. Unlock more tracks as you hear them from certain moments in the game,) GAME LOG (View your completion percent by viewing completed events, choices made, quests completed, and enemy types discovered during the course of the game. Undiscovered quest logs are marked by question marks. This is a pretty fun way to keep players going back to try to find out what they missed.)