BBB

BBB is a failed clone of User Kon, who was created by said User in an effort to make a copy of himself in case something ever happened to him. Several things went wrong in the cloning process however, and BBB came out blue and silver instead of red and gold, and he awoke with no memory and a desire to cause chaos. BBB began wrecking User Kon's room, so Kon put him in prison on the User World to stop him from doing any more damage. While BBB was in prison, he learned many things regarding the multiverse and its inhabitants, and renamed himself from "Who am I?" to "BBB". Meanwhile, User Kon learned from his mistakes in creating BBB and created Konta instead, who turned out to be a successful clone and was put in stasis.

When Makuta Blackout gained a new body and decided to attack the User World, the prison BBB was in was hit by a blast of Unicron energy, and the surviving prisoners escaped. BBB offered Blackout his assistance in destroying the User HQ, but Blackout denied his request as he saw no need for help. Because BBB intrigued him though, Blackout decided to keep him, so he threw him into one of Darkmount's cells so that he could study him later.

However, that time never came. Instead, BBB disappeared for a great many years, only choosing to return from obscurity at the very end of Ascension to fire an energy cannon at User LM. While LM was incapacitated, BBB grabbed the User, shoved him into a stasis chamber and pressed the button to turn it on. After seeing LM frozen, Kon engaged BBB in a fistfight and the two duked it out until BBB threw a chunk of the ceiling at the machine that caused Malygos's ascent to power. The chunk of concrete landed on a button that reversed the mage's ascension, an action that was felt all around the multiverse and distracted Kon long enough for BBB to escape. He then smashed a window and jumped out before activating his parachute and floating away to parts unknown.

Abilities & Traits
BBB is technically of the same species as the Users, but lacks their powers of creation or destruction, and so has to make mischief his own way. He looks like User Kon except that he is blue and silver instead of red and gold, and wears a silver helmet that looks like this.

Trivia

 * When BBB first appeared in the pages of BZPB, he was called "Who am I?", and was the in-game representation of Kon's then-BZPower account, created as a character separate from User Kon.
 * The name "BBB" stands for "Bionicle Bionicle Bionicle", which was the name of Kon's first alt account on BZPower, created shortly after the "Who am I?" account was banned.