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Ready, Aim is a downloadable microgame in WarioWare: D.I.Y. and WarioWare: D.I.Y. Showcase. It was released on October 21, 2009 in Japan, September 20, 2010 in North America, and October 22, 2010 in Europe.
At the start of the game, a monster is attacking either a building, tree, house, or helicopter. The first tap sets the angle for the cannonball to be fired from the cannon. The second tap sets the power the cannonball will fire. Don't destroy the thing to protect. Destroy the monster instead.