I realized that if you activate the Cerebella Marquee Ability, she can "drain" meter from the opponent, even if she/he doesn't have a drop of meter, like the following video: So, let's take a look to the description of marquee: 'Throws drain 20% meter from the opponent's blockbusters' (Marquee lvl 1) I guess it's a bug, because: 1. Description says 'drain' not 'gain', so Pummel Horse maybe could drain 20% of blockbuster meter from the opponent with each hit until there's no more meter, but, she stills 'gain' meter even when the opponent's meter is zero (You're hitting the opponent and she/he could gain meter, but I don't think the generated meter could be enough to fill 3 blockbusters). 2. Making a comparison with description of 'Vampire' modifier, Vampire gives you HP even when the enemy's HP is zero because the description of modifier says that you got HP by the inflicted damage and not from the opponent HP and... 3. Making a comparison with Diva Intervention SA, she can't 'get' more HP from a knocked out opponent because SA is about deal damage and recovery some HP and not because you only inflict damage or Sekhmet doesn't drain blockbuster meter if there's no meter (well, at least this is what I have seen, maybe Diva SA could generate from the void too). Hope I can get more information about that.