Sumimasen being the Pyramid battle sounds right to me as well. If so...then, yes, it's just a battle test Square's programmers used for debugging--it's a part of the Debug Room after all. In that particular battle it's very easy to throw in any status or spell in the game (*all* work on the pyramids, and it's easy to try since you can get whatever materia you need elsewhere in the Debug Room.) I may be really going out on a limb, but I think their health is even 7777 (for Lv7 death.) Of course I haven't used the DR in about a year, so I could be going senile.