For information on the blaster's standard features, see Stampede ECS. The Sonic Stampede ECS is a clear green version of the Stampede ECS that was released in 2011 under the Sonic Series. It comes packaged with a green Blast Shield, an orange pop-out bipod, three eighteen dart clips, one six dart clip and sixty green Streamline Darts. It is a Toys "R" Us exclusive.