Eric Lee feels that CD games give gamers the opportunity to enjoy themselves in privacy. And the games have a stronger story line and better audiovisual effects. These strengths have attracted a corps of diehard loyalists.
李永進認為，單機版提供玩家「獨樂樂」的私密空間，而且故事性強、聲光音效精緻，故依然擁有一批死忠玩家。