Shy Guy Says

Shy Guy Says is a 4-Player minigame in Mario Party, Mario Party 2, Mario Party: The Top 100, and Mario Party Superstars. In Mario Party, Mario Party: The Top 100, and Mario Party Superstars, a Shy Guy appears on a boat, and the players are in barrels connected by rope to the boat; in Mario Party 2, a Shy Guy stands on a rainbow with a bow and a quiver, with the players being attached to balloons. The Mario Party: The Top 100 version of the game is based on the Mario Party version, though the Shy Guy wears only a hat instead of a full pirate outfit. The minigame's name is a reference to the game.

Gameplay
Players have to raise the same color flag as the Shy Guy. The Shy Guy's flags show the button used to raise that flag: in Mario Party and Mario Party 2,  in Mario Party: The Top 100, and  in Mario Party Superstars for white, and  in Mario Party and Mario Party 2,  in Mario Party: The Top 100, and  in Mario Party Superstars for red. Players can choose between raising a red or white flag. If one of the players raises the wrong color flag or does not raise any flag, the Shy Guy eliminates the player from the minigame by using a sword to cut their rope in Mario Party, Mario Party: The Top 100, and Mario Party Superstars or by popping their balloon by using a bow in Mario Party 2. In Mario Party and Mario Party 2, the Shy Guy will sometimes raise two flags at once, then put one of the flags away early, while in Mario Party: The Top 100, the Shy Guy will sometimes take out a flag and immediately put it away. When raising two flags at once, the Shy Guy can also raise a flag after lowering it and lower the other one. Both of these techniques reappear in Mario Party Superstars. The last player attached to the boat or their balloon wins the minigame.

In Mario Party 2, a bypassing Lakitu appears, serving as a timestamp for the game. If the player does not raise a flag before the Lakitu has gone offscreen, the Shy Guy will pop their balloon.

Mario Party / Mario Party 2

 * – Raise white flag
 * – Raise red flag

Mario Party: The Top 100

 * Raise red flag
 * Raise white flag

Mario Party Superstars

 * Raise red flag
 * Raise white flag

Mario Party

 * Game Rules – "Raise the same color flag as the Shy Guy. is white,  is red."
 * Advice – "The Shy Guy will try to trick you by raising two flags at once, so be careful."

Mario Party 2

 * Game Rules – "The Shy Guy will raise a flag, so just raise the same color flag. It's simple, right? The game continues until only one remains."
 * Advice – "The sly Shy Guy will try to fake you out. Don't let him fool you. If you let him down, he'll shoot you down."

Mario Party: The Top 100

 * Description – "Raise the same flag that Shy Guy raises! Last one left wins!"
 * On-screen – "Raise the same flag that Shy Guy raises!"

Trivia

 * Shroids from Mario & Luigi: Partners in Time use an attack similar to this minigame.
 * An alternate texture for the Shy Guy pirate is present in the game's files but went unused.
 * The minigame makes an appearance in a 4koma Mario Party four-panel gag manga where Mario eliminates the hosts the same way hosts try to eliminate the players.
 * In Mario Party 2, Luigi's flags have a rendering issue that causes them to look as if they are not fully attached to the poles, an issue also present in Yoshi's red flag. Luigi's left wrist is also seen constantly twisting.