considering ive been playing halo sine i was 10 and games like battlefront and the force unleashed b4 that and now im 15 and sofar none pf it has had any negative effect on me watsoever its not the games...its parenting...its as simple as that iv watched and played R16 movies and games 4 a very long time and i have yet 2 see any negative effect at all so just dont... thank you