Before any of you get your hopes up I am talking about the game that was released around the time of the movie.
There is a decepticon who is an extra boss you fight in one of the levels. I think at the time I was either bumblebee or jazz. This particular character was made into a tripple changer for the game. His three modes were: apache gunship, a howitzer type cannon and of course the robot mode. He was aptly named SHOCKWAVE. Now obviously the game designers can "play" with expand a bit more in regards to character's etc as apposed to the film where the narrative and more importantly the budget have an influence on how and what can be used.
I would just thought I would let you all know about this addition to the game as it answers a long awaited question of mine and that was "will shockwave ever make an appearance again?"
Even though he didn't really say much it was a great way to show him as a tripple changer and more or less bring him back from the dark ages.