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Roach Blast is a downloadable microgame in WarioWare: D.I.Y. and WarioWare: D.I.Y. Showcase. It was released on September 23, 2009 in Japan, August 23, 2010 in North America, and September 24, 2010 in Europe.
At the start of the game, a few roaches are placed on a 3x3 grid, sometimes with a cake. The objective is to destroy all roaches, but leave the cake unscathed, by using the lasers, which the player needs to tap the buttons to.