Bobby Tai

I'm a 17 year old studying to become a Jehovah's Witness and I need your views on the following:

Halo series:

First person shooter games seem OK, but I play the multiplayer game over a computer server with my friends and it seems pretty fun but it bothers me that blood gets spread everywhere and that must mean violence. I think "violence" is a strong word but it is the blood that makes it seem violent. And I am NOT a lover of violence!

Banjo-Kazooie/Tooie:

Yes, I know it seems harmless but the only thing I'm curious about is that in Banjo-Kazooie in the level Mad Monster Mansion, it has been pointed out that there is a mini game that takes place on an ouij board; I'm not sure if it's true though. Banjo-Tooie however seems very well clear of bad influences other than main villain being a witch.

Avatar: The Last Airbender/The Legend of Korra series:

It's been stated in the very first episode that the bending is NOT witchcraft, but I am curious about the whole "spirit world" thing. Does it make it OK as long as the spirits AREN'T evil? Another thing is that only the Avatars and few selected people become spirits (compared to the Bible, only a certain number of people are selected to go to heaven) but because I'm not sure, I haven't been watching the new series.

Jehovah's Witnesses ONLY please. My apologies if you don't know what these are about.

Another thing is, is it true that it all depends on your conscience?

Thank you for your time to answer.