The upper side of Whisper's Stealth Jet mode is moulded in black plastic (the same as body & tail of Stormcloud's jet mode) while the underside (his robot mode body) is purple (as are the wings and nose on Stormcloud's jet mode). A moulded front landing gear with two wheels towards the rear.
TF: Identical to Stormcloud: Pull the nose forward and down a tiny bit. Fold the front of the nose up and back 180 degrees. Fold the wings up. Stand. Raise the arms. (That's right - a C&P from the Stormcloud review)
Whisper's robot mode is a game of two halves. The legs are very poor. For a start there's open panels at the front of the lower legs which taper away to form the underside of the jet mode. To make matters worse he doesn't stand that well either being rather too top heavy for the legs to support him even with the aid of the front landing gear serving as a heal spur. He needs some support to the sides too. A good job then that he has a Micromaster foot peg hole. The upper body looks great, especially the dual cannons moulded either side of the robot's head. Standard Micromaster articulation here: turning shoulders and joined bending hips & knees.
Let down by the legs & the balancing.
For this release black becomes green and purple becomes grey resulting in a more Military themed figure.
The Groundshaker base when released in Japan was identically coloured but renamed Landshaker and came with a different figure: Gunrunner who is a repaint of Roadhandler