The Bomb is an important object that appeared in Powerpuff Girls Doujinshi.
Powerpuff Girls Doujinshi
It first appeared when Bell was, along with GIR, on the Moon. There she activated a big bomb that caused a big blue explosion resulting in the machine only to disappear. What happened to the moon is unknown. Later they wanted to install another one, that was much smaller, in Megaville. After Bell installed it after or during her battle with Blossom and Buttercup, though with the help of Samantha, the bomb exploded.
- There have been several hints that the bomb is a time bomb.