Did you follow these steps: https://github.com/RetroPie/RetroPie-Setup/wiki/Running-ROMs-from-a-USB-drive#automatic-mount-easiest-method
As that is in my opinion the easiest way.

@dunken No. Cheats are game specific and some contradict each other. You can't just have every cheat enabled at once. How can you start on level 2 and level 6 at the same time for example?
Some "cheats" are even designed to make a game more challenging, ie "start with 50% health"

@mike001 yes.

http://www.raphnet-tech.com/products/wusbmote_adapter/index.php

@gorgar sorry for saying i didnt know how to do it. I forgot that i figured it out as this is the only emulator i know of that lets you do it.

@mitu I never ended up doing this I realized I'm an idiot and I could just transfer all the other ROMs to the SD card lol thanks for the help though

@kalimah You say you tried "a couple of ways" but don't detail these. Please provide more information. There is only one reliable way to manually install RetroPie on top of Raspbian and that is the official way. Please see docs

@dnaeye So you able to run Raiden fighters in retropie now...? might to share ?

I've hidden my BIOS files by scraping all of the files, then selecting "Parse gamelists only" from the start menu on emulationstation, then manually deleting the bios entries in the gamelist.xml files.

It's a little time up front, but it's clean. Just have to remember to unselect the "Parse gamelists only" option when adding new, unscraped roms, then scrape them, then select it again.

@treaves Ow! Ow. My eyes! It burns! Help!

@dankcushions you were TOTALY right, I needed a BIOS but the one that worked the best for me ant let me save my game was the CPH 7502, thank you very much friend

@bluecrown You should take a look at the Docs and do some research on the forums regarding the specific emulator you are using. I don't run any playstation emulation, but I noticed there are least three (3) different PS1 emulators alone!

If you are going to ask questions about performance, do your research first, try suggestions in the documentation, and for heaven's sake, if you end up asking about something specific, don't just mention the name of the game you are plyaing--you also gotta describe in detail what emulator you are using, and depending on its capabilities, what settings you are using etc.

That said, perhaps with more detail, someone will add their experienced answer here, although this thread was about YouTube, so. . .

AH I see exactly what I did wrong, I need to set the neo geo mode to unibios as well.

Lets see if this fixes things.

@cgeyik I think learning to solder would be the easiest option. As the case comes, the power/reset are hard wired into the power in and all current flows through both buttons. I just cut the traces to the switches, which isolated them from the power circuit and allows them to be used for other purposes, and soldered power in directly to the pins that go to the pi. So eventually you’ll have to solder something to the power in. I did a whole rundown of my build in a couple threads.

@artic I had the same problem.
Check here: link text.

@lostless what if i disconnect the wifi? maybe it would stress it less?