Prototype different shots to add variety to gameplay.
It would be great to add the ability to do grapeshot, chain-shot, or canister shot. Grape shot can tear holes through the sails; Chain-shot (or bar-shot) can take down the masts and rigging; Canister shot can kill some of their crew manning the cannons. These could be purchasable upgrades at a dock (if the dock option is created), or it could be a temporary power-up after defeating an enemy.
Would love to manually load different kinds of ammo and put in cannon to do so.