Toy Story Midway Mania is a shooter ride in Pixar Pier at Disney's California Adventure. While it's not a "must do," it is also recommended.
This dark ride will use "Buzz Lightyear"-style interactive technology to allow riders to play games as they ride, making each trip through the Toy Story-themed attraction unique.
TPI editor Robert Niles interviewed Disney Imagineer Chrissie Allen about Toy Story Midway Mania: http://www.themeparkinsider.com/flume/200805/756/.
Walt Disney World