Did you know the Crimson & Black DS Lite is the "senior version?" Yeah, it's news to us (especially those of us who own it), but according to Gary Krakow, anything with a leatherette case and math is clearly not for kids. Usually, we limit the Friday video spotlight to something we can embed here for your viewing pleasure, but this time, we're making an exception -- and when you watch Mr. Krakow hesitate over 0 +1, you'll know the reason why. Head on over and take a peek.

This article was originally published on Joystiq.

Friday Video: In defense