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The object is to not move the system at all until time runs out; otherwise, the egg(s) will break with the cracks resembling Wario's mustache.
Occasionally, the player is instructed to "Roll over!" instead as a chick is about to hatch.
Super Smash Bros. series
A similar microgame appears in the WarioWare, Inc. stage in Super Smash Bros. Brawl, Super Smash Bros. for Nintendo 3DS, and Super Smash Bros. Ultimate. When in the microgame, a sitting marble statue and the words "Don't Move!" appear in the background. the player must simply not move the control stick or press buttons, otherwise they lose the microgame.
If a character is attacked by someone else, the attacked character can still win the minigame despite technically having moved, so long as a button isn't pressed after getting attacked.