Turbo Touch 360
From Sega Retro
The Turbo Touch 360 is an interesting third party Sega Mega Drive/Sega Master System controller manufactured by Triax Technologies for North America. Attempting to stop blisters and "numb thumb", the D-pad has been replaced with a tracking device which detects where your left hand's thumb is without the need for pushing downwards. It also claimed to allow 360 degree controll as a result. Similar controllers were created for the Nintendo Entertainment System and Super Nintendo Entertainment System, though in different colours and with different amounts of buttons.
The gamepad was first unveiled in North America's CES in Winter 1993, but the technology never replaced the D-Pad in later consoles because the system was too sensitive and uncomfortable to use. Supposedly there was a money back guarnatee for anyone who didn't feel the controller would last longer than a standard Mega Drive gamepad.
Gallery