Trap chest

Trap chests and trap roulette are recurring gameplay mechanics in the Mana series, first appearing in Secret of Mana. Trap roulette was first seen in the original Trials of Mana, but did not appear in any localized title until Sword of Mana. When a defeated enemy drops a treasure chest, there is a small chance that the chest will contain nothing at all and instead release some kind of trap that harms the opener: or, a roulette wheel will appear that the player may spin in an attempt to dodge a trap, but the player may still pick up an item. In many titles, traps are part of the experience and cannot be avoided.