From Brotato Wiki
Minigun is a weapon that can be bought from Shop. Weapons are primary damage dealers and most Characters can hold up to 6 weapons.
Minigun is a Ranged Weapon. Ranged weapon shoots a projectile what travels up to total Range. If the weapon has no pierce, the projectile only damages only one enemy.
Weapons in the same class gain bonuses, and are more likely to be found in the Shop.