History
When Galactus threatened the Skrull throneworld, the disgraced and exiled Super-Skrull built a version of the Ultimate Nullifier. He used it on Galactus to stop him from consuming Tarnax IV. It did not destroy Galactus as it was a poor facsimile of the Ultimate Nullifier, though it did nullify his appetite therefore he gave Tarnax IV a reprieve.[1]