Chaos Cannon (Special Weapon)

Chaos Cannon is a Master Weapon used exclusively by Shadow Man in the Sonic the Hedgehog and Mega Man comic crossover event, Worlds Collide. With this ability, Shadow Man can freeze his opponents with a Chaos-barrier. This can freeze the opponent until Shadow Man is distracted from the foe, in which the foe can escape the barrier. When using this move, Mega Man turns into a red and black attire, which matches Shadow's color scheme.

History
While Sonic the Hedgehog, Mega Man, Miles "Tails" Prower, and Rush explored Skull Egg Zone to find the remaining Roboticized Masters, the heroes encountered the Roboticized Master Shadow Man and the Robot Master Shadow Man. Due to the name confusion, the heroes are thrown off to fight which Shadow Man. The Roboticized Master Shadow Man had then attacked Sonic with the Chaos Cannon and Mega Man then decides to attack the Roboticized Master. He uses the Chroma Camo Master Weapon to dodge the Chaos Cannon attacks, and Mega Man transforms into his Tails Wind Master Weapon to stun the Roboticized Master Shadow Man for Sonic to escape the barrier. Sonic then helped Tails and Rush take down the Robot Master Shadow Man while Mega Man used the Spin Dash Blast to return the Roboticized Master Shadow Man back to Shadow the Hedgehog. Mega Man then absorbs the Chaos Cannon Master Weapon to surround the other Shadow Man. Shadow, humiliated by his defeat, destroys the other Shadow Man for revenge. This is the only time the Master Weapon has appeared in the comics. (MM #26)