psv-save-converter VS ArtemisPS3

another option, once you have the .PSU file, is to convert it to ps3 native format PSV using Apollo save tool (ps3) or the psv-save-converter tool (pc/mac/linux).

You need to find enthusiast GitHub projects like https://github.com/bucanero/psv-save-converter that does this for the game in the direction you want. But it's mostly a not possible.

You can download the tool here: https://github.com/bucanero/psv-save-converter

Then if you want to use them on a PS3, you'll have to convert ps1/ps2 saves to the ps3-specific "PSV" format. (with a tool such as https://github.com/bucanero/psv-save-converter on your computer, or using Apollo save tool on your PS3)

if you have single saves for ps1 and ps2 games, you can use psv-save-converter (https://github.com/bucanero/psv-save-converter) , and convert them to the official PSV format expected by the PS3. The tool supports many save formats:

My r6.2 update fork can be found here: https://github.com/bucanero/ArtemisPS3

You can see a list of Artemis cheat codes here: https://github.com/bucanero/ArtemisPS3/tree/master/docs/codes

my latest Artemis fork (Artemis r6.2) removed a lot of old stuff like MAMBA PRX loader, so now it should work with any recent CFW that provides PS3MAPI: https://github.com/bucanero/ArtemisPS3/releases/tag/r6.2

Figure out how to install PKGs after you get hen installed (look it up on yt there are a bunch of videos etc) and then you can install this pkg here (artemis cheat manager or whatever it is called)