mark was getting clobbered by fucking maulers 3 episodes ago now he’s able to beat a full grown soldier viltrumite that’s been conquering worlds for millennia just because he “stopped holding back”. Even Nolan who got hospitalized by the guardians while soloing them, only suffered a cut on his head fighting THREE viltrumites!!! Just makes them look weak in comparison. I feel like they shouldn’t even have any chance winning that battle at all, not alone surviving in better condition than against way weaker foes
Fighting someone to just beat them in competition or defend yourself is way different to trying kill someone. He essentially had to shut the human in himself off in that moment and be a full cold blooded Viltrumite.