SOI FON'S SUZUMEBACHI TECHNIQUE: Why doesn't Soi Fon's Suzumebachi attack..

Why? Because that would give Soi Fon an unreasonably huge advantage over all other characters in the game.The reason the butterfly mark doesn't appear is that the mark indicates that another hit from Suzumebachi will kill the enemy. If Soi Fon could simply kill anyone with two hits,then winning battles while playing as her would be too easy, and winning battles where you're fighting her would be too hard. Anyways, saying that the Suzumebachi attack doesn't work on bosses is only half true. The attack will certainly still cause an appropriate amount of damage for a typical "super move," (meaning an attack which you press the red O button to perform.) This may seem frustratingly inconsistent with the Bleach anime and manga, but it actually kind of isn't. Remember when Soi Fon hit Aizen twice with Suzumebachi but the two-hit kill rule didn't take effect because of Aizen's superior power level? That tells you that Suzumebachi's power isn't meant to be absolute and can't be used to cheat your way to victory over stronger opponents. If you think of it that way, you will surely be less dissatisfied and frustrated with the attack's limited effect on bosses.