A first battling device has one or more processors, memory, one or more wireless receiving components; and one or more driving component for moving the first battling device. The first battling device receives a radio signal by using at least one of the wireless receiving components, the radio signal being broadcast by a wireless transmitting component of a second battling device that is distinct from the first battling device. The first battling device determines a position of the first battling device relative to the second battling device according to respective position information of the at least one of the wireless receiving components of the first battling device that have received the radio signal. The first battling device performs a predetermined action according to the respective position information of the at least one of the wireless receiving components of the first battling device that have received the radio signal.

In an embodiment there is provided a game element within a game adapted to be played on data processing apparatus, the method comprising the following steps implemented by at least one processor of the data processing apparatus, displaying a game area having a plurality of game objects on the display, providing a predetermined player object configured for targeting and shooting of the game objects in response to player input, providing predetermined data comprising characteristics of at least one game element, selecting the at least one game element and associated characteristics for display, displaying the at least one game element, and executing the characteristics of said at least one game element in the game in dependence on a trigger event. A computing system, user device and server are also described.

In an embodiment there is provided a game element within a game adapted to be played on data processing apparatus, the method comprising the following steps implemented by at least one processor of the data processing apparatus, displaying a game area having a plurality of game objects on the display, providing a predetermined player object configured for targeting and shooting of the game objects in response to player input, providing predetermined data comprising characteristics of at least one game element, selecting the at least one game element and associated characteristics for display, displaying the at least one game element, and executing the characteristics of said at least one game element in the game in dependence on a trigger event. A computing system, user device and server are also described.

A toy car includes a body, an ejection mechanism, a collision mechanism, a first wheel assembly, and a driving mechanism. The body includes a placement position. The ejection mechanism may exert a force on the target object placed at the placement position to eject the target object from the placement position. The collision mechanism may exert a force on the ejection mechanism when triggered by an external force, causing the ejection mechanism to switch from the locked state to the unlocked state. The first wheel assembly includes a first wheel and a second wheel. The driving mechanism includes a first driving motor, a second driving motor, a first transmission structure, and a second transmission structure. The first driving motor may drive the first wheel through the first transmission structure, the second driving motor may drive the second wheel through the second transmission structure.

A device for simulating shooting recoil force includes a main body, a cannon barrel, an elastic restoration device, and a driving device. An installation chamber is defined in the main body. An installation blocking plate is provided inside the installation chamber. The cannon barrel is movably arranged within the installation chamber. The cannon barrel includes a hollow cannon rod and a push rod. The push rod is positioned within the cannon rod. The push rod is slidable within the cannon rod. The cannon rod is provided with a first firing port. A first end of the elastic restoration device is connected to the push rod. A second end of the elastic restoration device abuts against the installation blocking plate. The driving device is connected to the push rod for transmission. The driving device is used for pushing the push rod towards a direction of the installation blocking plate.