Game Guy's Sweet Surprise is a Game Guy mini-game that appears in Mario Party 3.
The game involves a big Chain Chomp and a little Chain Chomp who are going to eat cake. The player must bet on which Chain Chomp they think will finish their cake first. The player can hover over the pictures of both Chomps and see their mood, which will sometimes hint around as to which one may win, but it isn't always accurate and the player could lose money by betting on the misleading Chomp. If the player selects Big Chomp wins, the player's coins will be doubled, but if the player selects Little Chomp and he wins, their money will be multiplied by a great number.
- - Highlights the Chomps.
- - Selects the Chomp of the player's choice.