Maybe our human robot could release a 'swarm' of something that can destroy one robot little by little and once it is fully destroyed, it gets rebuilt it as a friendly robot :P

It could be cool in my opinion :/

Yeah! And maybe it could be slowly built in the corner of the upgrade room, and maybe you can cut off limbs and heads and whatnot and all of those parts would contribute to the junk monster and maybe when it finishes it can become like a kind of clone and you can run towards your enemies with a crazy 3-legged clone robot! :)