Transformers Zodiac: Ironhide, Key and Attack

More of this guy. His Zodiac key, which bears the sign of Taurus, fits into his chest like a badge. His arm can transform into a cannon, and the key allows him to do multiple special attacks (more on the way). Pictured here is Cybertron Stampede, which summons his Zodiac Spirit, Longhorn.

EDIT: According to the request, the attack is actually called Cyber Stampede, not Cybertron Stampede. My bad.