1A17

1A17 is a fictional character from the video game series "The Binding of Isaac," developed by Edmund McMillen and Florian Himsl. The character is a playable character in the game's "Afterbirth" and "Afterbirth+" expansions. 1A17 is a robot with a single eye and a mechanical arm, designed to be a companion for the player character, Isaac. The character's name is a reference to the game's internal code for the character, which is "1A17." 1A17 is a unique character in that he is not a traditional playable character, but rather a companion that can be summoned to aid the player. He can be summoned by using a specific item, the "1UP!" card, which is dropped by enemies in the game. Once summoned, 1A17 will follow the player character around and attack enemies. He has a variety of abilities, including the ability to shoot lasers, create shields, and even transform into a different form. 1A17 is a popular character among fans of the game, due to his unique design and abilities. He is often considered one of the most memorable characters in the game's expansions.