From Wikipedia: The Game Boy Advance version of Hammy Goes Nuts! is a miniature golf game. The plot follows Hammy after his cable goes out; his friends teach him golf to pass the time without his television. Hammy finds that golf can be used to destroy stuff, and decides to use it to cause mischief. The game requires the player to break human objects by bouncing the ball off of them, while also completing each hole in a certain number of strokes. In order to succeed, the player controls Hammy from a top down view, and makes him move obstacles which are in the player's path so the course can be completed. After the obstacles have been moved, the player presses a button and the camera shifts to one of Hammy's friends from Over the Hedge, and the player takes the shot. The game contains a challenge mode after courses have been completed which contains more obstacles and allows for less strokes, and features a more traditional miniature golf mode without obstacles.