GBZ Buttons
From sudomod
Contents
A/B/X/Y
The A, B, X, and Y buttons of the GBZ can be any combination of NES, GB, and SNES buttons. SNES buttons will need simple modification, removing the smallest tab.
D-pad
The D-pad can be replaced with the NES controller's D-pad. The SNES D-pad is too large to fit.
SNES
L and R trigger buttons can also be used, see chiz's GB Pi2 build. Here's a video showing the L & R buttons installed in a GB shell using a Pi2: YouTube
NES
L and R triggers
The L and R triggers can be mounted on the back inside the middle screw holes using these buttons.
