Something's Amist

Something's Amist is a Duel mini-game found in Mario Party 6. Its name comes from the phrase Something's Amiss.

Gameplay
The objective of this mini-game is to get three emeralds first. When the player's controller rumbles, the player should press A quickly to pull an emerald out of the ground. The trees in the background will be looking at the area in which the jewel is buried, however the player must walk directly above the exact location of the gem or they will not detect it. Every time an emerald is retrieved, the trees shuffle slightly, not giving immediate direction to the next one.

If the rumble feature is turned off, an exclamation mark appears instead.

There is a page in the Miracle Book that features this minigame.