The Omega Beam as it appears in fan-fics.



Omega Beam (Justice League Unlimited)

The Omega Beam is used against Batman.



Darkseid (Justice League)2

Darkseid fires his Omega Beam at the heroes.

Justice Evolution - Darkseid used his Omega Beam against Superman various times during their fight on Brainiac's base while it exploded.

Superman and Darkseid

Superman X pushes the Omega Beam back onto Darkseid.

Conner - Darkseid used his Omega Beam to kill Lois when Conner was eight. Ten years later, when Conner confronted Darkseid as Superman X, he managed to push Darkseid's Omega Beam back at him, causing a huge explosion that ended Darkseid.