A new Nintendo patent, filed in February, dabbles in what appears to be scrolling shoulder buttons.
Nintendo have tinkered with the now common shoulder buttons for years, having introduced the concept with the SNES controller and refined it with clickable triggers on the GameCube's layout. It seems that the Japanese game maker maybe thinking of taking this further with what appears to be scroll wheels for the L/R shoulder buttons on an example controller.
The abstract for the concept reads:
An example operation apparatus includes: a direction input operation section provided on a front surface of a housing of the operation apparatus and at such a position that, in a state where the operation apparatus is held with at least one hand of a user, the direction input operation section is allowed to be operated with a thumb of the hand; and a rotation operation section which is provided on a surface different from the front surface of the housing and at such a position that, in a state where the operation apparatus is held with the hand or the other hand of the user, the rotation operation section is allowed to be operated with an index finger of the hand or the other hand and which is an operation section capable of being rotationally operated.
Do you think scrollwheel shoulder buttons could work?