A series released in 2001 by Tiger Electronics and Hasbro, the Pocketbots were a series of miniature BattleBots, smaller than the Battle Bashers but larger than the Battle Chains. They were designed to fit in people's pockets or attach to a keychain and are one of two series of toys in which a 5-digit number is paired with each toy instead of their respective names. Unlike other toys, these toys were placed in very hard plastic that required scissors to cut them out rather than the typical thin plastic and glue. At the back of each toy was a string that connected to not only the clip for attaching to personal belongings but also a black piece that fit under each toy.
The intent for playing with them was to attach the black piece on the underside of the toy it is fighting against and vice-versa. The toys would then be turned on and begin moving towards one another. Players had no control over which bot would actually win or the position of the weapons. It was generally about timing, luck and design. Ultimately, it's impossible to have more than two robots fighting at a time as each string is limited to one bot at a time with no way for rumbles. The six robots to be made into Pocketbots were: