The Infinity is a post-Moon Lordgun that drops from the Moon Lord in Malice Mode. The gun rapidly fires two streams of bullets that swerve up and down to form a helix shape. The gun has two firing modes. Pressing left-click will cause the gun to rapidly fire out energy bolts that explode into smaller bolts that bounce after traveling a short distance. Pressing right-click will cause the gun to rapidly fire out whatever bullets the player had currently equipped. Once fired, the Infinity will not stop firing until 30 seconds have passed or the player logs off of their current world.
If the player runs out of bullets or puts all of their bullets in the trash slot during the firing sequence, the player will continue to hold the weapon for the remainder of the time it would have been fired, except no bullets are fired.