They're in a trademark fight with the Japanese entertainment conglomerate that owns the rights to the famous movie monster.
Sarah Burnham and Jay Swett operate Grill Zilla out of a converted Frito-Lay truck.
They tell the Portland Press Herald they were told they could keep the Grill Zilla name, or their green creature logo, but not both.
They ignored the warning.
The next move is now up to Godzilla's lawyers.
