A Ground Pound Switch.

A Ground Pound Switch is an item in Super Mario Galaxy. It is a red and yellow switch that is activated when you Ground Pound on it, hense the name. By Ground Pounding, it will make Mario jump twice as high as before. Upon pressing the switch a variety of things can happen, mainly making Star Bits and Coins appear. There are also timed Ground Pound Switches, tree stumps that have a similar effect and grey Ground Pound Switches that make walls fall down. The grey ones make other areas accessible. Ground Pound Switches also appear in Super Mario Galaxy 2, having the same effects as in the first.

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