If you want, you can use the "Information image" dropdown to show an image to the right of the game icon. I won't be adding one this time.
Then we can click "Preview" to see how the game will look in the PSP menu (it won't be dithered like on my site):
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Now we're ready to generate files for the PSP by clicking "Convert". PSX2PSP will take a while to convert the game and show the progress percentage on the bottom of the window.
PSX2PSP says it's done! Let's take a look at the output folder:
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It created a folder named with the game's ID as its name. The folder contains EBOOT.PSP, which is the PSP executable file containing game data.
Copying the converted game to the PSP
To put the converted game on the PSP, we need to turn it on, move to "Settings" on the XMB menu and select "USB Connection" from there. Press X and the console should say "Connect this system to a PC or a PS3 system using a USB cable." After connecting the PSP to my PC with a miniUSB cable, the PSP is detected by the computer as a removable disk:
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If you're using a system like some Linux distros, which requires manually mounting USB devices, you can mount the PSP like any other USB disk. It should be detected as a SCSI/SATA/USB device (/dev/sdx1, with x being a drive letter). Mount the first partition of the "disk" and use dmesg to find out the device name if not sure.
Now all that's left to do is copy the folder created by PSX2PSP, called "SLUS00552" in my case, to the "PSP\GAME" directory on the PSP. This took a while for me, as PS1 games are a few hundred megabytes. After copying and waiting for the PSP memory card activity light to stop flashing, we can safely remove (on Windows) or unmount (on Linux) the PSP, press O to exit USB mode and then unplug it. Do not unplug the PSP while the light is flashing, or the game will likely get corrupted.
After going to Game -> Memory Stick in the PSP menu, we can see the PS1 game we only now installed (sorry for the low quality of my 2001 camera):
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Testing the game and talking about it
Let's see if it works!
The console shows and plays the PS1 logo:
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And soon, we see the opening cutscene!
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This game is closer to the manga than the 1995 film, and it's noticeable right off the bat with the game's techno soundtrack, which has no right to be this good. The opening cutscene has a VERY different tone from the film too. The cutscenes in this game are animated by Production I.G., the same studio which produced most Ghost in the Shell anime adaptations.
After the opening cutscene, the game shows us a very retrofuturistic main menu:
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I have a feeling this menu's green 3D interface could have inspired the original Xbox dashboard. Submenus like "Options" have a very cool 3D transition effect.
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The "Options" menu allows choosing one of 4 control schemes. This game doesn't use analog sticks, and bumpers and triggers do the same thing, so it's easy to control on the PSP. The PSP has no triggers and only one analog stick, which can be an issue in some PS1 games. This is compensated by the ability to rebind those controls in a menu available on pressing the HOME/PlayStation button.