>>1245363 The OP image is the famous bunnygirl from the DaiCon convention opening videos. That sword you referred to is the infamous one-hit-kill Stormbringer sword (Elric of Melnibone). Back when the videos were made, one of the dominant sci-fi book series was that of Elric of Melnibone. The anime fans that made that famous hand-drawn cel video went on to form Studio Gainax....
The video was quite catchy and made good use of the music's timing. Instead of using Japanese-sourced music, the video's makers used "Twilight" by Electric Light Orchestra.
http://en.wikipedia.org/wiki/DAICON_III_and_IV_Opening_Animations http://en.wikipedia.org/wiki/Stormbringer 