The Grimace is Rayman's initial line of defence, which he has been capable of right from the beginning of the original Rayman 1 game. To Grimace, Rayman stretches his mouth wide with his hands, sticks out his tongue, rolls his eyes and makes a gurgling sound with his throat. The power's functions vary from game to game.

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An official Rayman 3: Hoodlum Havoc artwork, doing a grimace.

In Rayman 1

 
Rayman doing a grimace, in Rayman 1 game.

In Rayman 1 this power's only use is to scare tall Livingstones; when they see the Grimace, they are driven mad with fear and start to run uncontrollably, usually killing themselves by falling into water. In the first part of the Swamps of Forgetfulness, the Grimace is temporarily replaced by the Magic Seed which Rayman receives from Tarayzan. When Rayman defeats Mr Stone in Mr Stone's Peaks, Betilla grants him the power to run, which permanently replaces the Grimace.






In Rayman 2: The Great Escape

 
Rayman doing a grimace, in Rayman 2 game. This animation is triggered only in the Sega Dreamcast and Apple iPhone/iPod Touch version by making Rayman idle for some time.

The Grimace does not appear in most versions of Rayman 2; however, in the Dreamcast and iPhone/iPod Touch versions of the game Rayman occasionally performs a Grimace at the camera if left idle by the player for a time. He also does this in the Game Boy Advance and N-GAGE version of Rayman 3.











In Rayman 3: Hoodlum Havoc/Rayman 3

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Rayman doing a grimace, in Rayman 3: Hoodlum Havoc game. Rayman is only capable to do it after defeating Reflux in the Desert of the Knaaren.
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Rayman doing a grimace, in Rayman 3 game for Game Boy Advance. This animation is triggered by making Rayman idle for some time.

In Rayman 3, however, Gumsi uses the Sceptre of the Leptys to grant Rayman this power after he defeats Reflux in the Desert of the Knaaren. Rayman can then use this power to convert Black Lums back into Red Lums by making them laugh after defeating their Hoodlum costumes. It is known as ‘The Power of the Leptys’ in this game.