Coincentration

Coincentration is a minigame in Super Mario 64 DS. It also appears in New Super Mario Bros. It is unlocked by catching an Orange Rabbit. The name is a pun on the words coin and concentration.

Minigame
"Pay attention to where the falling coins land. Touch the blocks to retrieve the coins. But if you choose the wrong block, your game will end."

The minigame starts with Wario punching a Money Bag. 40 coins fall out of it and into bricks below Wario as the Money Bag leaves offscreen. The player has to pick the bricks with coins. There are 40 coins in total. Picking the wrong brick ends the game.