Tear Jerker

 is a gun that shoots tears that pierce enemies and leave behind puddles of water. The direction of the tears is affected by the player's movements - moving left will cause tears to angle left.

Trivia

 * This gun and both of its synergies are references to The Binding of Isaac. The direction of the tears being affected by the player's movements is also a reference to this game.
 * The name of the synergy is a reference to Wrath of the Lamb, one of The Binding of Isaac's DLCs.
 * The maximum ammo capacity of 350 could be a reference to Isaac having a base starting damage of 3.50 in his game.
 * There is an unused sprite for this gun where it wears glasses, which is likely a reference to 20/20 also from The Binding of Isaac. Presumably this would make it function like 20/20, shooting two tears.