Here is a quick 1000/1000 Completion for ACA NEOGEO Samurai Shodown V Special.
Methods I used :
For the wins I used Haohmaru and only used the Hard slash ( RB on Xbox Controller )
NOTE : To get to fight the extra bosses on normal mode you must finish them with a proper finisher. You need to do this from Amakusa going forward.
Step 1 : Once you launch normal mode go in to the options and change the winning rounds required to 1. Change difficulty to Very Easy.
Step 2: Save before each fight and then also save once you get each boss in to the blue health bar as seen in the video.
Step 3 : To do the finisher get them to only have their blue bar of health left , then push LT ( left Trigger ) which causes Rage Explosion.
Now push Half Circle forward to back( 63214 ) and Y+B together. This will do the finish and take you to the next Boss fight.
BE SURE TO SAVE BEFORE THIS SO IF YOU MISS YOU CAN JUST RELOAD.
Be sure to watch the whole Video and you should have no issues getting this quick 1000.