A computer device providing a computer implemented game, the computer device comprising a user interface configured to detect user input from a user of the game, at least one processor, and a display. A processor is configured to cause a game area to be displayed on the display, comprising a first game object and a plurality of third game objects; cause the first game object to be controlled in response to user input to cause a second game object to hit one or more of the third game objects; cause the hit third game objects to be removed from the game area; and determine when given ones of the third game objects have been removed and in response thereto cause another game area to be displayed, the first game object being moved to a position within the another game area.