seems like it'd need to be more like
registerOutputEvent("Minigame", "ReloadHungerGames", "", 1);
function ReloadHungerGames
{
serverDirectSaveFileLoad(%HungerGames, 3, "", %0);
}
and you could test it yourself
edit: looking at other events dealing with minigames, try a function name of MinigameSO::ReloadHungerGames, while keeping the first line the same