ThunderBolt

 is an unused active item.

Effects

 * Makes enemies temporarily smaller and stuns them.

Trivia

 * It is unknown why this item was cut.
 * The ‘famous Gungeoneer’ is probably Alistair the Thunderbolt, referred to by most lightning-related items, like Shock Rounds.
 * Reference to the lightning bolt item in the game series 'Mario Kart'