Type any of the following codes on the keyboard while in any of the game's front-end menus. A notification popup should appear on screen notifying you of a successful cheat input. CHEATS can be turned on and off, and must be reactivated whenever the player returns to the main menu after a game-over.
| Code | Effect
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| - Makes Nyan Cat completely black.
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| - Replaces all yummies with Cat Bread!
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| - Makes a Chocolate Pop-Tart Themed Nyan Cat.
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| - Makes Nyan Cat move slowly from lane to lane.
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| - Makes Nyan Cat invert the color of whatever is behind it.
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| - Moves Nyan Cat far up the screen.
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| - Makes Nyan Cat flash rainbow colors.
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| - Makes Nyan Cat blurry and nearly invisible.
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| - Modifies the bottom-screen text notifications in game.
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| - Makes Nyan Cat transparent.
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| - Makes Nyan Cat completely invisible.
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| - Disables Nyan Cat's rainbow.
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| - Replaces bottom-screen text notifications with a parade of Nyan Cats.
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| - Makes Nyan Cat stealth themed (a la Sam Fisher)
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| - Makes Nyan Cat Hallowe'en-Themed.
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| |
| - Makes Nyan Cat black and glow red. Red glow is retained after reloading the game, black is not.
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| - Immediately change the appearance of the Nyan Cat itself.
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| - Changes "Nyans" to "Noms" in gameplay.
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| - Reverses the galaxy horizontally, and inverts the rainbow trail.
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| - Changes the word "cookies" to "Snookies" in the text notifications.
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| - Turns Nyan Cat into a watermelon.
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| |
| |
| - Flips the galaxy upside-down.
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| - Makes Nyan Cat completely white.
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| - Makes Nyan Cat white, pink and purple.
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