Given the series' history of development, including past crashes and version transitions, a "useful feature" often involves improving gameplay flow or adding modern conveniences to these older fan-made titles. Proposed Feature: "Resonance Burst"
As this is a fan-made adult parody, it is not an official product from Pierrot or Shueisha. Users should exercise caution when searching for downloads to avoid malware-laden sites. Bleach Circle Eden V6