A toy gun and a toy gun assembly are provided. The toy gun includes a gun body; a first power supply, a first printed circuit board (PCB), an infrared emitter, a first infrared receiver, a first vibration motor, a trigger, a first display module and a first speaker are arranged in the gun body; the gun body has a gun body portion and a handle portion; the first vibration motor corresponds to the handle portion; and the first display module is exposed from an outer side of the gun body and is disposed towards the upper rear side in a displaying manner.