Hi,
I've tried (and still trying) to rip graphics from PS2G. I had decent results with a little util called texmod. For example, I got this kind of sheets quite easily :
- chr_sheet.png (28.05 KiB) Viewed 15264 times
but also :
- towns-people-sheet-1.png (19.81 KiB) Viewed 15264 times
or :
- PCSX2-R3878.EXE_0x95801123 (2).png (61.19 KiB) Viewed 15264 times
Maybe it can help.
From what I've seen, ennemies sprites are more complicated (they are made from several sub-sprites, sometimes rotated, e.g. heads).
I'm currently focused on tiles in maps, and it's even harder. I gave up in thinking I could precisely rip them, but I think I can get a quite close result if I permit some little simplifications.
Edit : by the way, texmod seems to work well with PS1G too.