two Wii Remotes glued to the sides, and a display attached to a Wii Zapper. In a prototype shown at E3, the controller had featured circle pads similar to those of the Nintendo 3DS. On May 19, 2012, a photograph of a near-final version of the controller was leaked on Twitter by an employee of TT Games, revealing a wider build with ergonomic grips, a redesigned button layout, and analog sticks instead of circle pads. On June 3, 2012, Nintendo officially unveiled the final version of the controller, named "Wii U GamePad", in a video presentation preceding E3 2012. The presentation confirmed the leaked changes, and unveiled other features making use of the screen. Features The GamePad's primary feature is its , FWVGA (854x480), resistive touchscreen display, which can be controlled with either fingers or an included stylus. The screen can be used as a supplement to gameplay to provide additional functionality that can be controlled using the screen, or to stream gameplay from the console in lieu of a television display (Off-TV Play). The controller also features a front-facing camera (usable for video chat), dual analog sticks, nine-axis motion detection via a three-axis accelerometer, three-axis gyroscope and a three-axis magnetometer, rumble support, and an infrared array that can emulate the Wii Sensor Bar. The GamePad also supports NFC, which allows developers to create figurines (such as Nintendo's Amiibo figures) or cards that can wirelessly interact with the controller, and allows Japanese users to pay for software on the Nintendo eShop using prepaid FeliCa-based transit cards such as Suica. In a special presentation preceding E3 2012, Nintendo unveiled more details about the GamePad; including its ability to be used as a remote control for a television with the Nintendo TVii app, and the ability to send handwritten messages and other content. The GamePad communicates with a Wii U console over a modified Wi-Fi protocol designed for low-latency transmission, establishing its connection with the console by using a variant of the WPS process, with proprietary transfer protocol and software co-developed with Broadcom. The GamePad's display contents are streamed as video from the console using a custom protocol and the H.264 video codec, for which the GamePad contains a hardware decoder. Nintendo's first presentation of the controller in 2011 led to confusion upon whether the Wii U would support the use of multiple GamePads. A Nintendo spokesperson stated that the GamePad would