Name Change to a different name

Can I change my name to something in Japanese?
モンスター

Meant to put "Name Change to different Language"

you know there is a Kanji for monster

ps only duchebags use modern Japanese when there’s a kanji available basically they are saying ha look at me i can use my i phone app

ばか

oh and pm the admin

To some people depending on their computer and browser your name will then be a bunch of boxes with letters and numbers inside.