The Megashark is a Hardmode Gun that fires Bullets. It is a stronger version of the Minishark, and with 23 base damage it is one of the the strongest bullet-based weapons in the game.
The weapon fires at insanely fast speed and has a 50% chance to not consume ammo. It is one of the best weapons for use in mid to late hardmode against Hardmode bosses. The best modifier for the Megashark is Unreal.