Game Guy's Sweet Surprise

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It has been requested that this article be rewritten and expanded to include more information. Reason: include expected values

Game Guy's Sweet Surprise
Game Guy's Sweet Surprise: Two differently sized Chain Chomps devouring their own cakes. From Mario Party 3.
Appears in Mario Party 3
Type Game Guy mini-game
Time limit 10 seconds to select a Chain Chomp
Music track Game Guy Mini-Game
Music sample

Game Guy's Sweet Surprise is a Game Guy minigame in Mario Party 3.


The player simply has to predict which Chain Chomp can eat its cake faster. The Big Chomp will most likely finish first, and should the player correctly predict that he will win, they will double their coins. However, if the player correctly guesses that the Little Chomp will win, their coins will be multiplied by an even greater number: either 4, 8, 16, 32, or 64. Before selecting a Chain Chomp, the player can read a description of the Chain Chomps' moods, which may signify if they are capable of winning, but this is not always accurate. If the player makes the wrong prediction, they will lose all their coins, as with any other Game Guy minigame.


The probability that the Little Chomp wins depends greatly on the multiplier assigned to it. At fixed intervals, one of the two Chomps will take a bite of the cake, with a 40% chance of taking a second bite. The first Chomp to take six or more bites wins.[1]

Multiplier Probability of the Little Chomp getting the bite
16× 30%
32× 20%
64× 10%

This means that the overall probabilities[2] that the Little Chomp finishes the cake first are as follows:

Multiplier Win probability
16× 12.799%
32× 3.540%
64× 0.346%


  • Control Stick left or Control Stick right – Choose Chain Chomp
  • A Button – Select Chain Chomp

In-game text[edit]

  • Game Guy"The Big Chomp and the Little Chomp will have a cake-eating race. Predict which one will be the quicker cake eater. If you guess right, you'll get more coins. But, if you guess wrong, your coins will be mine."

Names in other languages[edit]

Language Name Meaning
Japanese ケーキでバトル
Kēki de batoru
Battle with Cake