Sounds to me like she's too easily affected by that shit to be honest and needs to find another outlet, like I said, get her on a different game, bet she'd like Bejeweled or something lol
plenty of flashing colours and stuff in that game and it only costs you something once. Oh and don't let people tell you your daughter can't play more mature games either, I was about 10 - 12 when I started playing games like Starcraft and Command and Conquer as long as they realise it isn't real and so on they'll be fine.