GameStop usually doesn't run awesome sales. In fact, they are usually bested by places like Amazon, Best Buy and Target. However, this week, they seem to be stepping up their game -- at least for 3DS owners. This week, through their online store, GameStop is offering two pretty solid 3DS games for $10 a pop. The two titles? Paper Mario: Sticker Star and Professor Layton and the Miracle Mask. Both games are solid endeavors, especially Miracle Mask, though, Sticker Star is compelling in its own right; it's just simply not up to snuff with regards to its heralded, paper lineage.