Rockets

Rockets are a Hardmode, post-Plantera form of ammunition, which are sold by the Cyborg, and dropped by Plantera along with a Grenade Launcher. Most Launchers use Rockets as ammunition.

There are four varieties, each with two significant defining traits: area of effect, and the ability (or lack thereof) to destroy tiles. Rockets I and II have a small area of effect, closest to that of a Bomb or Grenade, while Rockets II and IV have an area similar to the blast radius of Dynamite. Rockets I and III will leave tiles unaffected, while II and IV will break blocks and furniture in their blast radius (except for explosion-proof objects).

A rocket's splash damage will harm its user if they are caught in the blast radius. These explosions will not affect other players unless they have PvP enabled, however.

Variants
For more information, see Rocket.