I did… kind of.
As far as I can tell, the stuck-scenes occur because either:
a) Slight incompatibility errors arise between the emulator and specific hardware setups.
b) Running at normal speed, a shortcoming of the emulator makes it miss its cue to load the next scene - in all cases, something related to a battle - and so it gets stuck in an infinite loop. (I suspect that this explanation is, very basically, the case.)
What I HAVE found is a way around the problem for myself, though whether or not it will work for anyone else I’m not sure. I discovered that, although my decent PC plays the game fine and at full speed - yet crashes on these stuck-scenes - my three-year old budget laptop which can barely even run the emulator gets past them every time.
So my advice would be: if you have a really feeble PC lurking around the place, and it can run GiriGiri - even at something like one-fifth speed - try using it for these specific scenes. If my reasoning is correct, this may circumvent the problem. If it does in fact guarentee that you will get past them, it would definitely be best, as simple trial and error could see you sitting there all night.
Just get right up to the point before you would reach each scene, backtrack and save your game, then switch to the worst computer you own. You can copy your save file between computers from the Windows > Profiles > Saturn directory.
Anyway, I’m currently up to the end of Disc 3, and have some more information which you may find useful:
Disc 1 Errors
1) Garil Desert: Gigra boss
Stuck-scene. Save immediately before entering the Blue Ruins.
2) Forbidden Zone: Atolm Dragon boss
Stuck-scene. Save before entering the Sky Transporter (i.e. before the Craymen’s Elite Guard sub-boss).
The Atolm sequence is largely messed up; there are no sky graphics, just black void.
Disc 2 Errors
1) No stuck scenes!
The visuals are humerously messed up, but the place functions correctly.
Disc 3 Errors
The “approach to Mel-Kava” sub-area (where you fly towards the ship) and related cut-scenes cannot be seen at all due to a complete graphical error. All you can see is blackness, but just hold B to fly forward and you’ll be fine. You CAN see the enemies during the battles in this location, and the following Mel-Kava sub-areas display correctly.
***2) Mel-Kava: Atolm Dragon boss ***
Stuck-scene. This Atolm battle is apparently derived from the same game code as the first, and it screws up in exactly the same ways: no sky, and it freezes just before the battle. After clearing all the exhaust ports off Mel-Kava’s deck, exit to your world map and save the game at camp. This is as near as you can get.
3) The [Disc 3] Tower
Stuck-scene. The game loops after the introductory speech from the first sequence of battles. I have an unpleasant suspicion that EVERY battle sequence in the Disc 3 Tower will do this, but I haven’t got around to checking any further as of yet.
I also have the really unpleasant suspicion that the Forest of Zoah might not be playable at all, as it could be invisible for exactly the same reason as that Mel-Kava area. (I’d guess that the fogging layer across the screen is the cause of the “lost graphics” at Mel-Kava and the Atolm battles, due to it possibly being rendered opaque instead of transparent. I hope that I’m mistaken about this.)
And I hope all that helps…