As the rumour mill continues to drop hints about online retail giant Amazon's plans to launch an Android-powered set-top-box mediaplayer with videogaming capabilities, images of what appears to be the unannounced device's game control pad have surfaced, reportedly by way of ANATEL, the Brazilian equivalent of the US FCC or Australia's ACMA.

The controller shown is very similar in form factor to an Xbox 360 or Xbox One controller with staggered dual analogue sticks, right and left triggers and bumpers, a dpad and XYAB button diamond. It also features three media playback buttons on the bottom face, the familiar Android OS back, home and menu buttons at the top, and a central jewel button with a symbol resembling that of Amazon's GameCircle achievement and leaderboard tracking service.

The ergonomics of the input device really don't look so hot, so we remain unconvinced that the images represents a final product design, but it does suggest that Amazon's STB/Console launch might not be too much further away. The design documents also indicate that it uses standard AA batteries and standard Bluetooth connectivity.

The device is widely expected to be built on Amazon's own fork of Google's Android mobile operating system as seen in the retailer's Kindle Fire line of tablet computers, with game and application sales through an Amazon appstore, rather than the Google Play android store.

The controller images follow news that Amazon had acquired Strider and Killer Instinct developer Double Helix Games.