Ziege makes a single proper appearance in the anime. She was brought to help find the person who hacked into the Lastation server (more than likely a nod to the PlayStation hacking incident of 2011).

She was later seen in Episode 8 Ending spoof. In it she was on Nepstation and was about to be introduced by Plutia when they finished the episode abruptly. She did not speak.

(Source: Hyperdimension Neptunia Wikia)