Looking to add some SEGA-themed t-shirts to your wardrobe? Now's the time to do it, as SEGA is running a special Memorial Day Weekend sale. Right now, there's a buy one, get one 50% off sale on a number of different t-shirts. There's all sorts of SEGA designs included, such as Sonic, Altered Beast, Jet Set Radio, Streets of Rage, and more. Check out the entire catalog here.