The somewhat longer answer is that Gege Akutami was heavily inspired by "Naruto" and Gojo is a homage to Kakashi, Naruto's own mentor (who similarly has white hair and covers half his face).

A fan-made video shows Gojo and Kakashi fighting it out in an attempt to determine the strongest, and fans are bowled over by the animation.

One of the most iconic anime characters you can make in the game is Gojo from Jujutsu Kaisen. Making Gojo in this browser game can be a bit of a process since the blocks you need are not easy to make.