Oddly enough, the bad guys get one. Losing her battle to Devilman, Silen is offered a fighting chance by Kaim (who loves her, apparently.) Due to Silen's injury, merging would mean the end of them both, but Kaim has no intention of surviving. He only wants to give Silen the satisfaction of defeating Devilman. Their combined strength mortally wounds Devilman, but they're petrified before they can deliver the final blow. The look on Silen's face is that of a satisfied grin.
When Devilman rescues Miko from the Anti-Demon Corps laboratory.