The Concussion Cannon was the V.4 upgrade of the Concussion Gun. It could be fully upgraded to the Titan Concussion Cannon in Challenge Mode. The weapon was useful against clusters of enemies that were close together. It was very long ranged and worked best close up. The Concussion Cannon fired so much shrapnel onto the battlefield, that it was also classified as a mobile artillery weapon on the planet Xyxx VII.
- Ratchet & Clank: Size Matters (first appearance)