I just ended buying this. https://thepihut.com/products/4-port-usb-hub-usb-2-0. Once I have it, I will update this post.

I see - in this case your project is just a regular RetroPie box (any case would do) and connect 4 external fightstick controllers - via USB (possibly you'll need an USB hub to not bog all 4 USB ports on the Pi) or Bluetooth.

@drewjbx why dont you create a second config file for players 3-4 with the buttons slightly remapped? Probably could use the coin button as start or something? Edit:how often are both triggers used in game?

@Clyde Yes agreed, didn't plan on doing that. :)

@Breadbin As long as the system has 4 working controllers (regardless of how they're connected), it should work. The only possible configuration would be in the emulator options, to enable multi-tap if it's not the default.

@allenpie Install the Joystick Selection tool from the link provided and you'll have an extra menu entry in the RetroPie menu for you to configure the controller/player mapping.

@lurker said in Games with 2P ROM versions: I am developing a theory that Player 3 has the best characters; Ralph the Wolf (Rampage) Bart (the Simpsons) Donatello ( TMNT) and TMNTII Ha! I really think you're on to something there. For 'Rampage', I play Ralph most of the time myself. It's a shame he was always the one snubbed when they needed to cut a character for the home ports. Of course the Lynx version actually threw us a curve ball by including a fourth character, Larry the rat. I've experimented with just about all the ports, looking for a good alternative that allows character selection and while several of them are very impressive on a technical level, especially on the Lynx, Master System and Atari 2600, nothing beats the arcade original.

@lesk said in 4 Player and 4 Monitor Ikea Coffee Table Hack: What is the name of the second last game? The weird fighting game before the game with the airplane? Looks like Pocket Fighter for PS1/Saturn

I just pushed an update for the ControlBlock driver. The four-player feature should work again now! Sorry for this bug!

Trash it for PS1 It's an action game where the 1-4 players have to destroy buildings with gigantic hammers. As a player, you take role of a construction worker who has only one mission: To smash everything to bits and cross the finish line before the opponents. Check it out on youtube it's actually great deal of fun.

@EctoOne These scripts can be considered experimental at best. Wouldn't recommend installing them

Check to make sure none of the spare trackball button wires inside aren't touching each other.

You are right, the two pads that are nearest to the 1 must be soldered.

If cost doesn't matter to you, you can pickup a super small 'desktop' computer for a couple hundred bucks and it'll literally be like 10 times faster than the Raspberry Pi 3 (mainly because it'll have a fully-functioning video card doing most of the graphics overhead). If you're a fan of the latter MAME 3d games this is a must. If you're just playing classics from the 70's into the 80's then a Pi would be just fine.

@domodan Although not as big as your 60" screen plan, my cabinet is a functioning 4-player design that plays all of the classic arcade games plus some consoles that interested me from when I was a kid (Atari 2600, NES, SNES). Check the link in my signature for details about my project. As you are probably concluding, you can get away with playing most of the older consoles using arcade controls, provided you have enough buttons. For me, that was six action buttons for players 1 and 2, and four buttons for players 3 and 4, not counting coin and start which double as select and start for consoles. I am looking forward to seeing more details about your project, as we seem closely aligned in terms of what you want to play--the only difference being maybe that I wanted some portability and the ability to play vertical games from the short sides of my cabinet so the image can fill the display.

Ok then you are gold... I can't help you with the reading...there might be a way to use a smaller font...but just wait a few seconds and let it scroll and read what it says. Look what I posted above... After that has been set...go back to the "quick start" menu and then go to save game configuration file....then resume and quit the game then restart it to see if the settings stuck. You can do a quick test by enabling the 4-player device and then backing out and choosing reset then resume..this resets the game and it will see that has been changed. But you have to save the configuration file for it to stick...unless you want to have to enable it every time you want to use it :P

@rhj501 i couldnt find an option in picodrive for team play or multi tap.

If your aim here is to play these games with two controllers but still choose the player you want, try using the 2-player clones. For example, tmnt2po lets each player choose which turtle they want to be.