"your document screenshot is for mame4all-pi - i can't imagine you're using that for pi4 (infact, is it even installable?). refer to https://retropie.org.uk/docs/Arcade/#step-1-choose-your-arcade-emulators to select an appropriate mame emulator." I already did that and that's why I did the mame4all-pi because it had the best crosswalk for the games I wanted, but that was the 2nd thing I did. Firstly, I put them in their proper places like 1942, AliensV3, Cyberball in mame4all. Hang On and Hard Drive in lr-mame2003. Then ChaseHQ in the lr-fbalpha folder and I didn't have any success there either. I went and assigned them their ROM specific MAMEs ect. I just did an update to get Scrot (screenshot pgm) and now my card is toast so I am going to start new and hopefully it fixes the issue(s) with this new understanding. Thanks for your time so far. I bet I will thank you again soon.

@AndersHP Well, "in the hunt" is not a neogeo game, but whatever. With you not mentioning at all the emulators you are using, i have a hard time making sense of your issue tbh (are you even using libretro/retroarch cores for those systems ? i would expect the standalone amiberry to be the recommended amiga emulator, and the mame libretro cores to not allow disabling raster irq this way). Or are you saying you are playing neogeo on amiga ? Is there a neogeo emulator on amiga ? Why would it run an irem m92 game though ? O_o

Tate mode doesn't auto-rotate. TATE mode adjusts the screen to fill your monitor. What you need to do is is specify the exact rotation you want for each game you need to and make a game-specific config file for it. If you have auto-rotation on and auto-rotate on, you will get some weird results. Auto-rotation should be turned off when using TATE mode (setting allow_video_rotate = false). Some games will need 180 degree rotation. You'll have to decide which end of your monitor you will consider your base (the one that will be the bottom edge when you spin it). For each game you want to have in cocktail mode, you will likely need a cfg file with the setting video_rotation = 2 for games that need to be flipped. Set it to 0 (or don't write a cfg) for games that sit the right way from the get go. This post was greatly helpful for me when I was doing my cocktail setup: https://retropie.org.uk/forum/post/39024

@mitu ok!!! All is perfectly setup. I was doing a bad thing here on the mame´s menu, I thought the button was configured just when I pressed the key in the joypad, but not... I have to press only one time and then wait. Ok!! alll my problems are solved. Thanks a lot to all of you.

@caver01 - Thank you for your help...basically with the IPAC, you just run the wires yourself instead of the wiring set with EG STARTS kit

in all honesty its easy to setup but you need to understand ra and it needs documented you can go back to the old way like above or set up up in controls both work im sure mark will get round to documenting it for people

@grant2258 said in History.dat in mame2003-plus?: cp /opt/retropie/libretrocores/lr-mame2003-plus/metadata/history.dat ~/RetroPie/BIOS/mame2003-plus/ Or hardlink the file to save unbelievable 6 MB disk space. :) ln /opt/retropie/libretrocores/lr-mame2003-plus/metadata/history.dat ~/RetroPie/BIOS/mame2003-plus/history.dat (I'm back from a gamer's bar and a bit drunk right now, so cut me some slack, please. :*) ) edit: Aaaand … I forgot the history.dat at the end. Corrected.

@pandamkii You don't unzip MAME roms, this is the way they're distributed they'll not work otherwise. If you're considering adding MAME to your setup and you're a beginner, then please read the Quick Start and the topics linked on that page. It will answer most of your questions and will help you understand how MAME rom(set)s work.

@unspacey To put it another way, by changing the "setting" as you describe it to use 2003, what you are doing is telling RetroPie which version of MAME you want to use. To succeed, the game you are launching must be a ROM from the version .78 set.

@vahnxdean Play it on windows with mame or buy it from steam. That game requires a newer version of Mame and I highly doubt it's playable even if you did get it running on the pi.

@amishgamer Did you watch... I watched it as a complete beginner wanting to use that DAT. It worked great for me first time.

@alistaircg which folder are you running the roms from? /roms/mame-libretro?