The Poseidon Cannon is a Cannon in Kid Icarus: Uprising. It is one of the few water based weapons, based off the sea god met in Chapter 7 . It can be unlocked by completing Chapter 8 in under 20 minutes. It shoots large watery bursts. While rounds fired by this cannon are slow, they can also be difficult to spot which often proves advantageous in multiplayer battles. Upon impact, charged shots erupt violently and usually throw targets several meters upwards while dealing damage. If timed correctly, another shot can be charged and fired to hit immediately after the target recovers from the previous blast.