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Ikachan is a downloadable microgame in WarioWare: D.I.Y. and WarioWare: D.I.Y. Showcase. It was released in America on April 5, 2010, and in Europe on June 18, 2010. It was made by Pixel, and is a Big Name Game.
When a clam opens, the player has to tap the Ikachan of the same color, causing it to swim into the clam and close it. The positions of the Ikachan and clams and the time the clams open are always random. The player wins when all Ikachan have swum into their clams. If he or she takes too much time, a fish appears and targets the Ikachan, causing the player to lose, even if they tap it. If the game is won, either the line "Danger GONE!" appears on screen, or the cat Ame, another creation of Pixel, swims by.