Blue Mushroom House

"Dig! Dig! Dig! Dig to your heart's content! It's only 30 coins per game"

- Toad

The Blue Mushroom House contains one of the special mini-games found in World-e in Super Mario Advance 4: Super Mario Bros. 3. It is a blue-colored Toad House unlocked after collecting 30 Advance Coins. The player must pay 30 coins each time they play this game.

Gameplay
Mario or Luigi starts the mini-game in a cave, and two sections of digging earth (first seen in Super Mario Bros. 2). Mario must choose one of them and dig until fall to another level. There are more sections to choose (two for each previous section). Digging once more, Mario will fall to a small area divided into four areas. One of them contains a Treasure Chest, while the others are empty. If the player digs to the chest, they will get a random item, but loses if they reach an empty dead end.