Some time ago I changed my nickname for stuff related to gamedev: Fimpossible Games
Fimpossible Creations is to be associated with my Unity Asset Store activity.
Also for some time I have second nickname too, it's Fylyp / Aldehyd and it's related to vocals and heavier music production.
And the last thing, my band called GRIP (Grip Rapcore)
Nirvana or Tytan McAnguns are deprecated for a looooong time now, this are nicknames from later childhood ;)
Giving links here if it's a bit confusing for you.
Cheers :)