Prompt: In the heart of a nightmarish spectacle, a powerful mecha looms far away ominously against the canvas of an unfolding nuclear detonation. The once serene sky now ruptures with chaotic brilliance as the apocalyptic blast surges, casting a surreal glow across the desolate landscape. The mecha's silhouette, etched against the blinding inferno, exudes an air of menace. Its murderous eyes pierce through the blinding light, and the futuristic weapons, bathed in the incandescent chaos, reveal their destructive might.