You have to get permission from the video game company before you can publish your videos on YouTube.
You will need to gain permission from the other YouTube videos' creators. This type of video is considered a compilation and there is a very fine line for using compiled videos under fair use.
Some music videos are removed due to the copyright owner claiming the video as their property and demanding the YouTube user to take down the video. Most music videos on YouTube are user-uploaded and not all of those videos have permission from the copyright holders to be uploaded and used on YouTube, which results in copyright complaints and videos getting removed.
It's possible to put up videos of EA Game content if you get permission from EA games first. Remember that you should look through all the copyright regulations and copyright school on YouTube and ask the company for permission before uploading your video. It's also possible to post a video without permission from them, but you will run the risk of your account getting suspended or "striked".
There are varieties of YouTube videos like this @Kinhaspace
If you own the rights to the video, then yes. If not, then make sure you get permission to use someone else's content first.
For comercial video, imdb is a good resource. For videos appearing on YouTube, using the comment system is virtually the only way.
Yes, you can use footage from videos if they have a Creative Commons mark on them, or if you get permission and are granted permission from the uploader/owner of the content originally to post the footage in your video. Make sure you read up on the copyright rules as all copyright rules apply in YouTube and abiding by YouTube's rules will help maintain your presence on YouTube.
youtube has 20 videos
Youtube videos do not have viruses. If you video the youtube video from the youtube official site. you can get viruses from malicious videos from third party sites claiming to be a youtube video. The main way people get infected is when they click on a malicious plugin popup message.
Take a video... of a horse?
By uploading a video.
Yes Minecraft Hunger games do have many videos on you tube. Just type "Minecraft Hunger games" in to search bar of youtube and you will find plenty of them.