VHBL for Gamocracy One: Legend of Robot

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What is it?

Vita Half-Byte Loader is a homebrew loader for the Playstation Vita, running through the PSP emulator on the Playstation Vita.

This is the official VHBL download page for people who own a copy of the PSP Game Gamocracy One: Legend of Robot, and a firmware 2.12 or lower. If you don’t own this game, or have a higher firmware, go back to the VHBL page to see if we have a version of VHBL working with a game you own.

Check the VHBL page for more details on this tool.


Choose the file that matches your version of the game:


Known issues

Not all homebrews will work with VHBL, head over to the gigantic VHBL Homebrew thread for details on what games work or not.

There is a bug with the default menu (wMenu) which might tell you with a red screen, something along the lines of:”Error! Couldn’t find any homebrews in ms0:/PSP/VHBL/ Please check your config file and/or restart VHBL”

If you see this error, don't freak out, just press LEFT TRIGGER

If you see this error, don’t freak out, just press LEFT TRIGGER

This is a known issue, and happens only as long as you don’t have any homebrew installed. To get rid of this error message, press the LEFT TRIGGER on your console, this will force wMenu to go to the SAVEDATA subfolder.

The issue is a simple one but I was too lazy to fix that. People with the right coding skills might want to have a look at the source of wMenu here and send me a patch.

alternatively, you can give a try to an other menu such as 138Menu here

How to Install and Run HBL on Gamocracy One: Legend of Robot

  • It is *strongly* recommended that you turn of all wireless connections on your PS Vita, and that you use OpenCMA on your PC instead of the regular CMA. This is recommended because otherwise your console has a way to force you to upgrade the firmware even before you get a chance to use the exploit.
  • Extract the HBL archive matching your version of the game in your CMA PSP Savedata folder. It is a folder on your PC named PSSAVEDATA/[lots of random characters here]. If you don’t know where it is, check your settings in CMA
  • Connect your PS Vita to the PC through the CMA, it should give you the possibility to copy the savedata from your PC to the Vita. If not, you probably extracted it in the wrong folder. (Note: You will also want to install some homebrews with a similar technique, read the section below)
  • To run HBL, start the game, then go to “High Scores”. At this point, VHBL should start

How to Install and Run Homebrews

Installing homebrews on the PSP was an easy task. On the Vita, until better solutions are provided, it’s quite a pain in the ***.
The CMA will only let you copy savedata, and will not recursively browse folders.

To address this, HBL comes with a tool that can extract archives with a specific structure.

Packaging the homebrew for installation on the Vita:
1) download PSP homebrews from your favorite website
2) extract the homebrew somewhere on your hard drive, and with your favorite utility, zip it again with the store setting (no compression), in a file that you will name “INSTALL.ZIP” (uppercase is important). If your compression tool does not have compression options, I recommend 7zip.
3) take any PSP savedata (but not the one used for HBL!), and add the “INSTALL.ZIP” to that folder, in your PC CMA folder. so your PSP Savedata will look something like this:
in folder PSSAVEDATA/1a2b3c4def5678/UCUS12345000/ (or something like this) you will have the following files:

On this page you will find several pre-packaged homebrews that have already been prepared to run with VHBL.

1) run OpenCMA on your PC, and CMA on your Vita
2) copy the previously packaged SAVEDATA (see above) with your homebrew in “INSTALL.ZIP” on your Vita
3) run HBL (how to run HBL is explained in the previous section)
4) navigate with the HBL menu to the SAVEDATA folder, then go to the folder you just downloaded (in my example, UCUS12345000), and click cross or circle on it
5) At this point, the HBL menu should ask you if you want to install the homebrew. select yes, and wait until HBL is done extracting your homebrew
6) The homebrew is now installed, and you can run it by going to the VHBL folder, if everything went well, a new subfolder with your homebrew has been created here, and you can run the homebrew

Need more help? Check our forums for more downloads and tutos


OpenCMA is strongly recommended to install if you want to use VHBL. Open CMA is a tool by Virtuous Flame that allows you to copy files from and to your vita without being connected to the internet. This is useful, especially if you don’t want Sony to forcefully update your firmware.

Looking for homebrews that run on VHBL? Check this thread with dozens of tested and pre-packaged homebrews.

58 Responses

  1. Dennis says:

    It keeps Saying: Freeing Memory… How to fix ?

  2. Omar says:

    When VHBL boots it says freezing memory and VHBL fails to load, any help?

  3. andrea says:

    same here D:

  4. Soosthemoos says:

    Odd. VHBL has booted, and I can navigate to the NPUG80413SAVEDATA folder for Piyatoma that I converted into the prepackaged Lamecraft r56, but it won’t install or display the INSTALL.ZIP that I know is there. I tried again with JellyCar V1.1, but the same thing. Anyone know what the problem might be?

    TL;DR, VHBL not trying to install homebrews. Help?

    • Soosthemoos says:

      Never mind me. I should have paid more attention to the word “prepackaged.”

      TL;DR, I’m an idiot.

  5. mikey says:

    The EU version stops at “Freeing memory”, but its still possible to leave the VHBL using the PS-Button.

  6. PeffHD says:

    When I copy it to my device, it doesn’t show on home screen. PLEASE SOMEONE MAKE A VIDEO ON IT! PLEASEEEEEEE

  7. SakkeMO says:

    Eu version working nice thank you.

  8. PeffHD says:

    When I install it on my psvita, the app is not on my home screen. Can anyone make a voice tutorial on youtube and put a link on here? So please.

    • SakkeMO says:

      You have to launch the Legend of Robot and go to highscores to launch vhbl

    • shay says:

      its not suppose to go on your home screen, did you even read how to install it? you get to the VHBL going into the Highscores in the game…

  9. X says:

    This thing makes no sense. Installing homebrew just doesn’t make sense at all. The directions aren’t clear enough, or my comprehension of it is terrible, but either way, it needs a more detailed walk through.

    • Chen5441 says:

      There has been a tutorial made by thez94
      On YouTube. Stop complaint and actually look and maybe you would’ve found it yourself.

    • wololo says:

      Just download pre-packaged ones initially from our forum. You’ll get the idea with time. Other people have figured it out, you’ll understand too eventually. The technique is cumbersome and my explanations are not great, but it’s midnight here and I have to wake up early for work tomorrow. The community is better than me at explaining stuff 🙂

    • Chen5441 says:

      Are you serious… There has been a tutorial of how to install it since before the actual files were released. The guys name on YouTube is “TheZ94”

  10. shay says:

    when i try to use gPSP and Dragonball z after installing them they both give different error, is there any fix for that?

  11. vali says:

    i copy the NPUZ00259DATA00_SOURCE_v2 folder to my pspsave folder and i got corrupt file
    any help?

  12. ijnmko says:

    i don’t have any save data Exception Gamocracy One: Legend of Robot save data what should i do?

  13. delta191 says:

    EUR version works with

    picodrive – working (reset sound to 44,000 or sound is choppy)
    GPSP working (savestate caused crashed outs)
    SNES9X_002Y32 working (press select and start to exit game)
    MAME r2 4.7 installs but crashes to black screen

    still to test castaway (atari ST emu)
    still to test PSPUAE (Amiga emu)

    Good work guys 🙂

  14. Gem says:

    Trying to install Kingdom Hearts BBS 1.0.12.cso – got “1 remaining files” and fast-sound-ticting. File about 1.2 GB. How lond should i wait or it’s useless?

    • Josh says:

      I have a similar issue while trying to install the Snes and nes emulator. Im guessing i must have messed up somewhere. Any advice?

  15. Shise says:

    hi after homebrew installation do we need to keep the psp save file?

  16. MrAyzarC says:

    hy, i have installed the VHBL with the eur exploit.
    ive already installed a few homebrews but everytime i try to launch them i get thrown out of the game.

  17. Spyrowon says:

    I did everything correctly but whenever I go to content manager on my Vita, It doesn’t show up in the saved data, (PC -> PS VITA SYSTEM, SAVED DATA PSP/Other) I did everything Thez94 did in his tutorial. I’m on 2.12 and U.S. Version of Gamocracy.

  18. RokieFelt says:

    It works perfect! / /
    For those who have not yet been able to make the simple form.

    -Keep the “Savegame” of some other game they have. on your computer to add the “install.zip” folder in “/ PSAVEDATA \ NUMBER \ SUSAVEDELJUEGO \ (which is uncompressed, and ready the discharge section wololo).

    -Remember the name that will appear the same in the VHBL.
    -The visit VHBL folder “savegame” thus kept show all the other games, the lodge is that clicking on the savegame that has the “install” will recognize and install. posteenlo doubt here and try to answer salu2

  19. Sparkey says:

    I use the prepackaged files, and follow instructions as best I can, but I’m running into a problem.

    When I select the save file in the HBL that contains the Homebrew, instead of asking to install it I just go right into the folder, still in the directory.
    What am I doing wrong?

  20. tonny says:

    managed to install drive but I can not put roms.
    I’m sorry but it’s the first time I VHBL

    • tonny says:

      managed to install pico drive emulator but I can not put roms.
      I’m sorry but it’s the first time I VHBL

  21. ModH4ck says:

    okay…. what the heck is OpenCMA? 0.0
    It wouldn’t work for me it kept wanting to my connect with wifi :/
    and I tried to follow the tutorial but not much …
    please help, thanks.

  22. Morkax says:

    There’s some problems. i have notised the Legend of robot game is deleted from eu Ps store. i have to ask are wololo making new available game for 2.12 Vhbl or is this last hope if they are. Keep hury!

    Sorry abaut my bad english =)

  23. jkoiou says:

    Just installed this with 138 menu and everything is running great. did run into one problem (first homebrew try) tested gpsp kai and it loaded. wanted to exit with the start select method… gamocracy crashed… when it reloaded, it went into the game again it had part of the screen on the opposite side (almost split screen). I tried home button and then going back in bit the vita locked up and crashed. Also for sure snes9xtyl mod doesnt work. it loaded, and then tried to load a mario something or another and then crashed. I will ahve to install another build.
    Thanks QR for your port!

  24. Nick says:

    Thank you so much wololo et. al! Your work with the PS Vita community is greatly appreciated!

  25. ForteGS says:

    Are the chances high that this VHBL will develop into more like psp iso etc or this is about it?

    • wololo says:

      No, the chances are low. All of the devs I know with the skills to work on psp kernel exploits have either clearly stated they would not release their work, or are M.I.A.

  26. mida84 says:

    Thanks to everyone involved with this. Any alternate links to the EU version as I can’t seem to get the provided one to work.

  27. Raphael Wood says:

    Thanks for the hard work but can someone explain how to add roms to emulators? A little lost.

  28. squiggs says:

    I cannot run any homebrew. every thing is an fboot.pbp

  29. shivaxyz says:

    Does this mean I have to run Gamocracy *each* time I want to use a homebrew?

  30. Jericubbus says:

    Im already install the vhbl and im install somes emulators! the only who work as well is the Nester im *** tired to try with others emulators… the tested hb list it doesnt work! ehat i can do? is my fault or this vhbl just sucks?

    • wololo says:

      The compatibility of this vhbl port is above average. Check the forums where people give tricks on how to get the homebrews to work, or provide working versions.

  31. dwight says:

    can you use a gamocracy iso and rip the files then install it onto the vita?

  32. Steve says:

    I think I have everything figured out, where to put home brew and whatnot. When I go into VHBL and to the save folder for my game, it asks to install but hangs up on “5remaining files” and never does anything after until I hit home on the VITA just to get out of it. What am I missing?

  33. apizjepon says:

    hi I already try this but it didn’t work coz I from singapore and I want asian singapore version.. pls help me..

  34. Tesaco says:

    Whatever happened to the so called “Ninja Release”… have been expecting the e-mail for a long time and never got it… Thanks ***

  35. jaffar says:

    After i copy the GAMOCRACY ONE: LEGEND OF ROBOT in my ps vita it does not appear on the home screen so i dont know how to run the game i can find it in the setting but i can’t run it so if you can let me know what to do thanks.

  36. Oscar says:

    HII Im having a hard time.. I cant put the files of the homebrews or emulators inside the PSAVEDATA because I only have this folder (NPUZ00259DATA00) and not this folder (UCUS12345000) I have seen to much tutos that people have the second folder in their PSAVEDATA and they save the files inside that folder but they dont even explain how to get that folder.. I understand that I cannot save files in the first folder because is the one that contains the VHL.. please helppp

  37. Ranny says:

    I was able to successfully copy the HBL but the bubble icon doesn’t show up for me to run. I tried copying the US and EU version but still no effect.

  38. bishoy nader says:

    look I copied it correctly but I don’t know how to launch it

  39. bishoy nader says:

    I don’t have the game itself can someone send a link to download the file and data of the game

  40. bruno says:

    how can i download??is there outher exploited game on 2.12 verssion?and how can i download once i try to log in in psn it asksto upgrade =/ can help me ?thanks

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