First up is a video from Kishidan, Kira Kira
From the catchy song, to the unique uniforms(each bandmate has a different color) this video is full of awesomeness, even before you get to the invisible guns.
Now for anyone who's ever heard of QWOP, this game is similar, but with a unicorn that has to get to/rescue a fair maiden on the other side of a hill. Warning, it is very addicting.
One of my favorite groups to watch online has a new video out in their series of super hero therapy sessions, and this one is pretty amazing.
Todd makes an awesome Loki.
Speaking of favorite groups, I like a lot of the videos over on http://thatguywiththeglasses.com/. This year's anniversary special is turning out to be quite the event, each new segment is better than the last.
First episode can be found here. http://thatguywiththeglasses.com/videolinks/thatguywiththeglasses/nostalgia-critic/36311-to-boldly-flee-part-1
And I'm totally loving this song from it. Someone made a music video from the mp3. you can see it here. http://www.youtube.com/watch?v=yduv9z6dy3E&feature=plcp
Next up is a video from an artist I got to meet a few years ago, MC Lars. Be sure to check out his site here http://mclars.com/site/.
Last video is one of my personal favorites. I'll let it speak for itself.
Hatsune Miku "PoPiPo" from the game Project Diva Dreamy Theater