Because I'm using the PS3 version they didn't make Aya or Masanori's outfits available like in the Orginal Wii version. That being said, I don't know if they are available in the Wii version of Xteme legends. This weapon was also the first 5th weapon I got, as shown by the tutorial message when acquiring the weapon (Which mentions when using 5th weapons, every 100 KO's will 'Power up allied forces' not sure to what degree though)
Stage: Conquest of Odawara - Toyotomi (Free Mode Stage)
Difficulty: Hell (修羅)
Every Rare weapon in this game requires that you complete all 4 of the tactical bonuses in a stage
Requirements (In order that I would recommend)
1. Defeat Ujinori Hōjō with a K.O. count of 50 or less
2. Defeat Masataka Kasahara within 5 mins
3. Defeat Ujifusa Hōjō while the Toyotomi army has 6 or more officers on the battlefield
4. Defeat Yasutada Haga with a combo count of 300 or more
Tips: Have to be relatively quick for the first two, you don't want over 50 kills, but that can happen on your way to defeating Masataka... so best to get that one out of the way as soon as possible.