The Ace Coin is a collectible coin in Super Mario Advance. They are brownish red if not collected and turn grayish brown once collected. Ace Coins are found in easy and difficult places, depending on what level or world the player is on. Some Ace Coins can be collected by touching it and then killing yourself, because some are situated near the "death zones" of a level. The game counts by percentage all collected Ace Coins. If you collected an Ace Coin and killed yourself, your collected Ace Coins will still be marked as collected unless all lives are lost.