I'm really enjoying this game of your so far, but I've hit a block. I'm stuck outside the office building and can't figure out how to get in. The only direction I have is Luca saying "it's either them or me", so I guess that means killing the gob gob gals. But when I try shooting them with the weapon Vivi gave me, it does nothing. Please, what am I doing wrong? I might try restarting the game in case it's a glitch, but I'm hoping I don't have to >_>