Activision's Skylanders series is doing big business -- big enough for the House of Mouse to take notice and develop a multi-million dollar competitor. The result, Disney Infinity, shares surface similarities with Activision's series, but its gameplay skews toward an older audience, in the hopes of capturing a universal appeal. Disney Infinity makes a lot of promises, boasting gameplay that takes cues from big-name hits like Minecraft and LittleBigPlanet. The finished product is a rousing success, offering lightweight but solid co-op gameplay built on a foundation of undiluted nostalgia.