Crazy Lemmings

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Crazy Lemmings is in co-op platformer that changes how co-op is done. Not only do the players share the same avatar and must switch who is in control of it, they also have to coordinate their use of voices to win. One player controls two of four abilities, whistling and shouting and the other by shushing and humming. They have to shout, whistle, etc. at the microphone to complete the levels.

The voice control is achieved by the use of Pure Data, a visual programming language that analyzes the players vocal inputs which is in turn send to the game.