Murder drones OC

Rob is a old model for a murder drone. Rob doesn't know how to fight. rob is just over-all nice. rob gets scared easily but doesn't show it. rob doesn't like when people bite his arm. rob has anxiety. rob has ADHD so he gets distracted easily. Rob has a long and thick tail. rob can easily slice and chomp through metal and steel. Rob has sharp claws unlike the other murder drones its short. unlike other murder drones like N, V and J, that have blade wing things, rob can fly with the turbines in his feet. Rob has a red core reactor serving as his power source, when hes off its empty but if hes on a small red ball of energy begins to float around and close to his core. story time! Uzi, V, N and J where exploding an abandoned lab...until thay all came across a machine...it looks to be ancient (for the technology at there time). it has a weird manual next to it...possibly it could power back on.