I am confident that these ADF's are 100%, Assuming you "only" use <F1> and <F6> in the trainer options
RoboCop 3 (1992)(Ocean)(M3)(Disk 1 of 3)[cr FLT][f NTSC FLT][t +6 LGD].adf
RoboCop 3 (1992)(Ocean)(M3)(Disk 2 of 3)[cr SKR].adf
Robocop 3 (1991)(Ocean)(M3)[cr FLT](Disk 3 of 3)[a].adf
With your savestate I finished the game and seen the ending correctly.
My xbox One Joystick Works fine pressing <J> again to switch to "Keys operative"
Finally we can put this at rest