Casey

Casey is a melee weapon that increases curse by 2. Swinging the bat after a long charge-up will damage nearby enemies and reflect nearby bullets. The bodies of enemies killed by the bat will be launched and can damage other enemies.

Trivia

 * This weapon is a reference to the poem Casey at the Bat, written in 1888 by Ernest Thayer.
 * This weapon is a reference to the Casey Bat from Earthbound, which is also named after the poem. This is supported by the high damage of the weapon; Gungeon's Casey has the same damage as the S-Tier AU Gun, and in Earthbound, the Casey Bat is the highest damage weapon for Ness.
 * This might also be a reference to Casey Jones, a character in the Teenage Mutant Ninja Turtles known for fighting with various sporting goods, such as hockey sticks and of course, baseball bats.
 * This gun is among those Gunsling King and Manservantes can challenge the player to clear a room with.
 * The top half of the bat is a shotgun shell casing, making its name a pun.
 * The quote "Nothing can happen until you swing the bat." is from FLCL.
 * The tagline “Batting .50” is a reference to .50 caliber bullets and Batting Average in baseball (a theoretical 0.500 being impossibly good).
 * The fact that the weapon increases curse while being carried stems from the Gungeon rejecting melee weapons.
 * Usually, opening a chest containing Casey causes it to appear on the right side of the chest, instead of the center.
 * Whenever the player finishes a round with a super punch in the Resourceful Rat's Punch-Out!! phase, he will swing Casey at the player. Even if the player has Casey, The Rat will still use it and the player will be unable to.