Cyclonus' signature Mini-Con Crumplezone appears attached to Cyclonus' Vehicle Mode as his cockpit, but never appears anywhere else in the game outside of this, not even alongside Cyclonus or part of his "chest" when he is in Robot mode. It's possible this was done by the developers to make the Decepticon a little more intimidating during his boss battle.
Contributed by PirateGoofy
Attachment
Attachment