Halibut Cannon

The Halibut Cannon is a Revengeance Mode-exclusive Pre-Hardmode gun obtained incredibly rarely from any enemy in the Abyss, with a somewhat higher chance to drop from the biome's mini bosses and a guaranteed drop from the Adult Eidolon Wyrm. It fires out between 25 and 35 bullets per shot that slowly spread out, while only consuming one unit of ammo. While the default base damage is 12, the total bullet damage is halved before defeating the Wall of Flesh. This effect is calculated after all damage boosts and the additional damage provided by the ammo. Additionally, its base damage scaled after defeating the following bosses:
 * Plantera: +10%
 * Golem: +10%
 * Lunatic Cultist: +20%
 * Moon Lord: +100%
 * Providence: +15%
 * Polterghast: +30%
 * Devourer of Gods: +60%
 * Yharon: +100%

After defeating all the above bosses, the Halibut Cannon gains 345% extra damage, totaling 53 base damage.

Trivia

 * This weapon is a reference to the late game critic TotalBiscuit, previously known as TotalHalibut, as indicated by the presence of stereotypical British attire on the weapon's sprite.
 * Halibut is a typical name of fish from the family of right eyed flounders.