From the readme:
During the game press L/R to choose ingame options.
Press SELECT to use ingame options.
Current ingame options are:
- Virtual Keyboard : SELECT+U,D,L,R,SELECT = F1/1,F2/2,F3/3,F4/4,F5/5 keys.
- Autofire : selectable speed.
- Speed Trottle : fast forwarding.
- Save Snapshot : save PNG file into GPMM\MSX\SNAP.
- States/Movies are not yet implemented.
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Notice how if you hit the R button it cycles through a list of the items above, L does so in the opposite direction? When you're on the option you want, stop hitting L/R and press select (i.e. "Press SELECT to use ingame options." For the keyboard, as it says, hold Select while pressing Up, Down, Left or Right (that's on the joypad, btw). I've seen Rlyeh post that it is select plus start for F5/5.
That's it for the keyboard. It will get the majority of games that need more than a space to get started started (in case you didn't read MORE of the readme: PAD is mapped for the MSX joystick and cursor. A fires the joystick button 1 (Space key too). B fires the joystick button 2 (M key too). So if you need a space, hit A.
There are a few games that require the keyboard, but 90% or more of them don't. Also, thanks to Rlyeh firing off cursor keys AND the joystick at once, the controls work great most of the time too, with no messing around. Some games just want to run, try a different image or ROM or just try another game. I have probably over 30 or so MSX games up and running on my GP32, its great!
If you're having problems getting a game to load, try some images from the ftp Rlyeh put in his readme.
As for fNES, most people have found the other NES emu (infoNES or something like that) to be more usuable, try that. Once Rlyeh finishes work on a new version he started from scratch his will most likely be better though.
unlucky - sorry, I've never had the problem. A couple of thoughts would be: try it with the directory empty, try it with a small # of roms, etc. Mine has a directory called SNAP created by MSX in it... maybe create it yourself in case its choking on that? Sorry I can't be of more help.