• Super Serum - If the player also has [Hazmat Suit] or the [Gas Mask] , the Plunger's ammo capacity is increased by 50%, its projectiles can bounce, and the size of the projectiles increases.
• Prior to the [Supply Drop] Update , Plunger continually left poisonous goop on the floor whether or not it hit an enemy.
• The [Sponge] will prevent the player from standing on goop and refilling the Plunger's ammo. Any form of flight also prevents it, as the player is not "standing" on the goop due to them being airborne.
• Using [Duct Tape] with this and low ammo weapons is a very effective combination, as their ammo can than be refilled by standing on goop.
• [Charming Rounds] causes the stream of poison fired from this weapon to appear a light blue, similar to the [Mega Douser] but a shade lighter.

Purchase from Professor Goopton for 7 .