A Lottery Shop is a building in Mario Party 4 where players can play lottery games to win prizes. Each game costs five coins to play. There are two types of games, one of which is randomly chosen when the player enters the shop. The ball-type game involves turning the control stick until a colored ball pops out of a machine. A blue ball indicates third prize, a pink one second prize, and a yellow one first prize. A white ball wins nothing.
The scratch ticket game involves the player picking one of twelve scratch cards and scratching it to reveal a number to indicate third, second, or first prize, indicated by numbers 3, 2, and 1 respectively. A "Try Again" can also be revealed, winning nothing.
Additionally, if it is a player's first visit to the lottery shop and the visit came before the last five turns of the game, the player receives a free Lucky Party Ticket. Also, if any players enter the shop while mini, a block is provided for them to stand on when playing.