Ace Coin

Ace Coins are large, red coins with an "A" engraved on them. They only appear in Super Mario Advance, as the successor to the Red Coins from the Challenge mode of Super Mario Bros. Deluxe.

Five Ace Coins appear in every level, and the player is required to obtain them to fully complete, or "ace", the level. There are 100 Ace Coins in total. When the player collect every Ace Coin in a level, they get an extra life. Ace Coins are often near where the player gets injured or loses a life. Whenever a player replays a level, every collected Ace Coin becomes transparent and only rewards points when collected. If the player gets a Game Over in a level that they have not completed, they lose every collected Ace Coin from their progress.

Ace Coins are very similar to the Dragon Coins from Super Mario World. Similar but differently-colored coins known as Advance Coins appear in World-e of Super Mario Advance 4: Super Mario Bros. 3.