Thanks for the update!
The "Help" screen should be updated with the correct GCW Zero keymap...
NORMAL MOVEMENT........ d-pad
STRAFE (sideways).......... B + d-pad
RUN .............................. Y + d-pad
SHOOT........................... X
SELECT WEAPON.............. ? (maybe L and R)
ACTION KEY ................... A
STAND HIGH/LOW ........... ?
MOVE STATUS BAR .......... ?
PAUSE / MUTE ................. ?
ACTIVATE MENU .............. START
Attached the "readme.txt" updated to the GCW Zero version...