A jumping mechanism for a radio-controlled toy vehicle with a slender opening provided in a chassis of a toy vehicle; a rotary shaft provided on the chassis in a lateral direction, vertical to a longitudinal direction of the opening; a rotation mechanism mechanically connected to a first portion of the rotary shaft for rotating the rotary shaft; and at least a rotation arm being mechanically connected to a second portion of the rotary shaft and extending in a vertical direction in relation to the axis of the rotary shaft and having a rotation center positioned over the opening so that the rotation arm rotates in a plane vertical to the axis of the rotary shaft and so that, when the rotation arm is directed downward it passes through the opening of the chassis wherein a top portion of the rotation arm is positioned below the bottom level of the toy vehicle.