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A bomb with a face and feet, which has a windup key on the back of it.


Gives Isaac five Bombs and causes all Bombs (including Best Friend and Mr. Boom), placed by Isaac or otherwise, to slowly slide towards the closest enemy.


  • Dr. Fetus - Fired bombs home in on enemies, making it easier to deal with fast monsters such as Globins.
  • Any other Bomb augment, such as Bob's Curse, also work well with this item.
  • Wrath's own bombs will home in on himself with this item.


  • This item is likely a reference to Bob-ombs from the Super Mario series.
  • The "Bobby" name can be a reference to the default name of any AI in almost all games with an "auto-targeting" function.

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