A hybrid 3-D isometric platform/puzzler, Edge is simple. You're a sticky cube, and you must navigate each level to get to the endpoint. That's easy enough at first, but later stages require mastery of techniques like clinging to the edge of moving obstacles. Any other wrinkles in the formula are unfortunately telegraphed with hologram tutorials. While not much changes throughout the 43 levels, Edge's straightforward approach and charm make for a compelling experience—not necessarily one worth waiting for since 2008, but solid nonetheless.