Silent young children in striped clothing from indie games involved in perpetual time loops (or just general time shenanigans), in which they practically can't die (Frisk, with their SAVE/LOAD powers, constantly resetting the timeline and cheating death with it, while the Protagonist is in a time loop where the same day gets repeated over and over again, and even if he dies, the loop would just start over again). In these games, their actions determine the path the game goes in, in which they are either good people and help others or bad people who kill everyone.