The traps can usually be categorized as involving either devices hooked up to the victim that must be removed, poisons whose antidotes must be discovered, rigged areas from which the victim must escape, or a character given the option of releasing a victim from an otherwise inescapable lethal situation. In all these cases, the victim is usually required to undergo extreme physical or psychological torture. It is sometimes necessary for a victim to interact with other victims and work together to survive.