Leader of the Bandineros, a gang of merciless pirates, the Shake King endeavored to capture Queen Merelda and her subjects to take over the Shake Dimension. Why? To claim their treasure, of course! The Bottomless Coin Sack, which is exactly what it sounds like. However, one subject managed to escape, asking Wario and Captain Syrup for help. The two oblige, both hoping to claim the sack for themselves.