This is highly dependant on the game - some games support 2 player consecutively (like Pac-Man or Super Mario Bros), others support 2 players simultaneously (like the Street Fighter games). It's not something that can be configured in the emulator.
If you have just one gamepad (joystick + buttons) but the game expects 2 players, then you can't change it - the 2nd pair of controls would insert the coin (Select) and also use Start to enter the game.

What game are you trying to play ?

@gassyninja87 Please don't reply to 3 year old topics - you should have started a new topic referencing this one.
For your problem, re-install the retropiemenu package while your HDD is plugged in and it should be re-installed and appear in EmulationStation.

@bezeau30 I see, the site you linked is not the 'RetroPie site', just another RPI related site. I've removed it, per the site rules.

Just strange though. For something that is not officially supported it runs fine after the installation. Just can't figure how to direct it to the usb drive to start playing it.

Wondering if one of the @administrators can change my forum username from @Quantastical to @webdevkit. Going through an identity update and would like to maintain my historical archives through to the new name. Thanks!

Thanks for the reply. I tried to do an upgrade, but it had many failed packages. So I ended up downloading the latest 4.5.1 Retropie image and building everything again from scratch.

Okay. I was able to fix this by re-installing RetroArch. This doesn't explain what went wrong the first time, but I'm glad I get to enjoy this wonderful emulator now.

Feel free to delete this thread.

Keep up the good work!

@mitu

No problem at all. Yep TOC is fine, it's just the links within the pages which are broken.

Thanks a lot.

@sirwin44 said in Question about Sets for MAME and FB:

Do i need all parts of gameX.zip for it to run properly?

it depends. is your romset collection non-merged? if so, each romset should be standalone. see https://github.com/RetroPie/RetroPie-Setup/wiki/Validating,-Rebuilding,-and-Filtering-ROM-Collections#crash-course-in-arcade-rom-terminology

@Styleshift Please open a new topic and add the info from https://retropie.org.uk/forum/topic/3/read-this-first. You shouldn't get the error in the topic unless you've manually downgraded the libsdl2(-dev) package.

thank you.

I did some dirty work and managed to prepare a small uSD image so i can boot to USB and load a 128 GB image.
thank.

@mitu - Hey, that's nice, many thanks for the tip! I'll be adding it to my FBNeo list. Sometimes I miss those numbered ROM's at the beginning of the list as 3countb comes before 20pacgal for example, thinking it's not in the list. Computers and their sorts! :)

I know this is SUPER old, but after parsing through possible ways/threads to get a trackball working on MAME2003, I was finally successful (after 3 attempts where I gave up and just went with advancemame)

A) in retroarch-core-options.cfg, add:

mame2003-dialsharexy = "enabled" mame2003-mame_current_mouse_enable = "enabled"

I didnt verify if you actually need mame2003-dialsharexy = "enabled" but Im glad it is working

B) in /opt/retropie/configs/arcade/retroarch.cfg, add:

input_player1_mouse_index = "MOUSEINDEX"

Where:

MOUSEINDEX is the index for your mouse /dev/input/mouse*. I needed to test through a couple as what I needed to enter above, wasnt the same as the device's index. Unclear how these correlate Your retroarch config (in this case arcade) may be different for your emulator. Easiest way I know to determine the config is when its running ps -aux | grep retro and look for the program and its referenced config file

@rarelyseensheep said in RetroPie setup issue:

From a ready made image

Then we can't support it - you'll have to ask the authors for support.
See also https://retropie.org.uk/forum/topic/3/read-this-first.

I too am experiencing the same issue. The game works perfectly in DOSbox on my PC and I'm using the exact same files and, from what I can see, the same DOSbox config options but through Retropie it crashes as described above.

My Raspberry Pi is a 3B+ as well.

@rsn8887 yes update is your best option unless the documentation here spells that out that it's a better option (e.g. Jessie to Stretch)

@jimmi4u You problem might be that the gamepad is not P1, hence it's not active on the current system. That goes for all the controllers - if the F710 is P1, then it work, but the others don't work anymore.

If you want to control the order, try @meleu's joystick ordering tool - https://github.com/meleu/RetroPie-joystick-selection.

@BuZz my bad, sorry. I didnt know where to go. It was working earlier and just stopped after i tried updating and wanted to find out if i could fix it but ill look on other websites for an answer

Looks like you've not defined a Hotkey when asked in EmulationStation input mapping - that's why B resets the current game.
What version of RetroPie are you using ? Can you add more info about your setup, as detailed in https://retropie.org.uk/forum/topic/3/read-this-first ?

I found the solution by combing the files from HerbFargus' 1.8.1 build with the latest files from jrassa's build + including the latest version of Retroarch executables in the Retroarch system folder. The only issue I'm noticing is the space between some of the fonts is squeezed together or centered on my television screen. Thanks again for your input 😊.