Sumimasen!, an area in the game that pits you against one of the Pyramids that Reno traps you in. Apperently it has no Attacks, it has no items, it can not be sensed, it can be manp. It has a high amount of HP, yet can not attack and can be affected by things such as poison. After you kill it you get placed in the upper left hand corner of the map

Note: to play as Sephiroth, it is A PATCH ON THE PC VERSION, anyone, AND I mean anyone who says its a Gameshark/Action Replay will be removed from the comments, and marked as spam. I Have to say that because the last videos I did I had people spaming my comments. (less info)