Umm... I don't really get this at all.
In my opinion, this song is garbage. Completely useless noise. Rebecca's 30 seconds of fame needs to be over. NOW. This video is right up there with Tay Zonday's "Crash Into Weird". Go ahead, look it up on Youtube. Right around the point where he's wearing his underwear on his head you'll know what I'm talking about.
Just because she's a cute girl who plays video games does NOT excuse videos like this being made. I wish I had some sort of way to cure my eardrums from having that really loud cacophony assaulting me midway through. I wish I could somehow remove any trace of me having visited this page, just because I don't want to add to her traffic numbers.
Then again, that's just my opinion. I'm not really that big of a music buff, and this just didn't tickle my particular fancy. It's not a genre I enjoy, clearly. I'm sure it's probably very relevant song and took talent to create, but I just don't have the experience to appreciate it. Read my first statement I made in this post and you'll find it apparent that I clearly have no idea what I'm talking about.