Has The Riddler ever become a galactic or cosmic threat in DC?

Board 8

Board 8 » Has The Riddler ever become a galactic or cosmic threat in DC?
Topic was inspired by this photo of space I just saw.

https://gamefaqs.gamespot.com/a/user_image/8/2/9/AANZX9AAEt9d.jpg
All posters and events depicted in this post are entirely fictitious. Any similarity to actual events or posters, living or dead, is purely coincidental.
Naw. Major threat, sure, but never Cosmic or Multiversal. There's no Emperor Riddler storyline.
https://twitter.com/OocWTC/status/1348011667976699904?s=19
UshiromiyaEva posted...
Naw. Major threat, sure, but never Cosmic or Multiversal. There's no Emperor Riddler storyline.
Yet
Khal Kirby , warlord of the Super Star Khalasar
PSN/Steam: CheddarBBQ https://goo.gl/Diw2hs
Wouldn't put it past Zdarsky.
https://twitter.com/OocWTC/status/1348011667976699904?s=19
Does the story outline for Zack Snyder's unmade Justice League sequels count? In one of them, Riddler finds the Anti-Life Equation and figures it out, but the knowledge eventually drives him insane and he kills himself.
Call from demon - with dark power to tempt your mind, very proud of the power. Destroy the firing shot!
Board 8 » Has The Riddler ever become a galactic or cosmic threat in DC?