Were you looking for Zero or perhaps Zero Regrets?
Zerobots are Zero's elite robotic force being huge and also very strong. The robots were helped built by Dark Toy Bonnie and thanks to that they are deadly.
Models
Each Zerobot is a different model. These models will be listed below along with their picture.
V6-Dog killer:
V6-Dog killer
Power-G78:
Power-G78
B7-Destroyer:
B7-Destroyer
Cosmic destroyer-799 V2:
Cosmic destroyer-799 V2