He keeps comparing himself to BigRo and Hazbin, like he has elevated himself to their level.
Narcissists always have to be right, so he will argue on here forever until he believes in his own mind that he is correct and Getbig is wrong. It is the basis of the delusion, if he accepted reality he would be accepting that he is a complete failure.
yes, he has Narcisstic personality disorder
NPD
Sense of self-importance.
Preoccupation with power, beauty, or success.
Entitled.
Can only be around people who are important or special. (HENCE WHY HES HERE

)
Interpersonally exploitative for their own gain.
Arrogant.
Lack empathy.
Must be admired.