Electro-Rebounder

Electro-Rebounders are consumable Hardmode throwing weapons that can autofire, are not affected by gravity, and can pierce up to 9 enemies. They are dropped by Martian Walkers during the Martian Madness event. They travel a short distance in the thrown direction before accelerating in the opposite direction for a considerable distance, and can pass through tiles during this rebound. They have a chance to inflict the Paralyzed debuff onto hit enemies, briefly disabling their movement; however, bosses cannot receive this effect. Additionally, they have a 15% chance to not be consumed on throw.

Trivia

 * The sprite for this item was the winner of the Thorium Mod Discord's Spriting Contest for Week 1, made by Trail Mix.
 * This weapon's functionality is based on the Cutter Copy Ability's main attack, Cutter Boomerang, from the  series.