Robot Boo 2 betrayed Agent Boo at some point, but he captured him and sole him for parts. He didn't want to rebuilt Robot Boo 2 because it would just destroy him and Agent Boo didn't want to spend lots of money for new parts.
- After Agent Boo sole his parts. He made another robot called Robot Boo 3 which was the best and still alive.
- He is the predecessor of Robot Boo 3 and the successor of Robot Boo 1.