The extracted ROM for Galaga wouldn't play in FB Neo for me:
The CRC hash value can be edited using Python and forcecrc32.py. Put both prom-2.5c from inside galaga.zip and forcecrc32.py into the same folder. Open a command window in that folder, type in python forcecrc32.py prom-2.5c 000000 77245B66 and press Enter. Then put the patched prom-2.5c back in the galaga.zip folder, that's it.
The extracted ROM for Galaga wouldn't play in FB Neo for me:
The CRC hash value can be edited using Python and forcecrc32.py. Put both
prom-2.5cfrom inside galaga.zip and forcecrc32.py into the same folder. Open a command window in that folder, type inpython forcecrc32.py prom-2.5c 000000 77245B66and press Enter. Then put the patchedprom-2.5cback in the galaga.zip folder, that's it.