To provide a sound sensitive toy which can increase excitement and enjoyment at a low cost.

The sound sensitive toy includes: a plant model 2 having a flower portion 4 consisting of an almost disk-shaped receptacle portion 4a, and a plurality of petal portions 4b radially arranged along the side peripheral surface of the receptacle portion; petal light emitters 412 each arranged at a petal base portion 4c such that light L emitted from the petal light emitter 412 is incident from the side surface of a light guide plate 431 to be projected to the front side of the petal portion 4b; the light guide plates 431 each arranged on the petal portion 4b; and a central control substrate 33 for controlling the petal light emitters 412 so as to emit light at a predetermined light-emitting pattern, based on sound sensed by a sound sensor 31.