Вот инструкция :

Installation
------------

This game is for PSPs with firmware versions 1.5 or for custom firmwares.
If you want to try to make it running on other versions, you will need to
download source code and recompile it yourself. Developed and tested on PSP
with firmware version '3.03 OE-C' in 1.5 kernel mode.

Installation instructions:
1. Unzip the package

1.5 firmware users:
Copy the Hexen2 and Hexen2% folders to the PSP/GAME folder on your PSP.

Custom firmware users:
Copy the Hexen2 and Hexen2% folders to the PSP/GAME150 folder on your PSP.

2. Install retail version of Hexen II on your PC

4. Download and install 'ph2v111.exe' to patch Hexen II to version 1.11
( you can get it from Raven Software official Hexen II home page at
http://hexen2.ravengames.com/raven-downloads.php )

5. Go to directory where you installed PC version of Hexen II

6. Copy DATA1 folder from this directory to Hexen2 folder on your PSP.

( Now you can go to PSP and start Hexen II or continue installing Hexen II mission pack)

7. Install retail version of Hexen II: Portal of Praevus on your PC

8. Download and install 'H2MP_Patch_v112a.exe' to patch Hexen II to version 1.12
( you can get it from Raven Software official Hexen II home page at
http://hexen2.ravengames.com/pop_patches.php )

9. Go to directory where you installed PC version of Hexen II

10. Copy portals folder from this directory to Hexen2 folder on your PSP.
( some files ( pak3.pak ) already in portals directory on PSP will be overwritten -
those files are necessary to make Hexen II work if mission pack is not installed )

( Now you can go to PSP and start Hexen II)