As @YFZdude mentioned, the genesis folder is a symlink (shortcut) to the megadrive folder, so there's no need to remove it - it's not actually taking any space. You can leave it as is, it's ok - the scriptmodules expect a megadrive ROM folder and updating the MD emulators will re-create the folder.

Scratch this. I have to rename (or symlink) the folder to megadrive. I will try it out when I am back at my Pi and report back.

@mattrixk many thanks!
All images, icons and logos of consoles, images of buttons, etc., I drew myself. The only thing I borrowed is the icons for the RetroPie settings. I don’t even remember who their author is, but it was someone from the same forum. They are in the catalog: retropie/icons

@Rion Seem to work now. Funny how the product page has 2 confirmation added: one for acknowledging it's a pre-order and one for I UNDERSTAND THIS IS NOT COMPATIBLE WITH THE NINTENDO SWITCH (?). I wonder what troubles the CM guys went through to add those.

Please read the following documentation.

https://retropie.org.uk/docs/Mega-Drive-Genesis/#switching-emulation-station-to-the-genesis-logo

@orehruoy I think what you might of had problems with is the shutdown type button you use with the shutdown script is a single press sprung button to inturpt the signal/make a signal. ( squid button)

Sounds like the mega drive button is a switch which is why it's changing around each time.

Very similar to my build (including the Mayflash), although I cut some grooves in the expansion slot to add some USB ports.

I wired the reset and power button to work as well, using a coupleof trimmed microswitches and GPIO pins, think I used the 'PiGirl' script to add them easily, then set the reset button as an exit emulator option, as I just couldn't configure that with a standard Mega Drive controller.

@markwkidd Thanks Mark.

@quicksilver I have 6 button setup working on both emulators as of now. I found the settings you mentioned in Mortal Kombat II but changing them made no difference. I went over everything on my setup and was stumped. I booted up a fresh image, completely up to date, configured my SNES and Xbox controllers and put on my Sega games only. I made the changes to the respective config files and presto it works. After changing the setting you pointed out that I missed earlier in Mortal Kombat. I don't know why my original setup was not working. It has to be something I modified but I haven't found it. Thanks for you help and if I track it down I'll let you know.

Update: I think I found the problem. When I updated in the morning I did both binary and source, I've never used source before. It wrecked my controller configurations. It had my generic SNES listed as generic and just SNES, and the Xbox controllers were listed as generic Xbox, the original config, and Xbox 360 Pro. Every game I launched listed the two controllers I had connected twice and then worked in piece. Not sure why updating from source would do this as I have updated from binary and it was fine. In the future I will probably unplug all controllers and use the keyboard for updating.

@iain few things of note:

If you're buying a kit stick with something like the canakit. Don't spend money on any kits that have retropie preloaded as it is a breach of software licences to sell retropie not to mention you don't know what else people have done to it, so when it breaks you're SOL, plus nobody here will support 3rd party images.

Also stick with the official docs, YouTube videos become quickly outdated (mine included!)

This should give you everything you need to know to get you started:

https://retropie.org.uk/docs/First-Installation/

I find macs gave issues with Linux symbolic links on smb shares. They show up as blank folders. On the pie the genesis and mega drive folders are the exact same folder. Only a tag in Linux that makes the genesis and mega drive folders one in the same from the os point of view. Like alieses on mac or shortcuts on windows, but deeper rooted. It doesn't just point like the other two.
So do Everything in the mega drive folder.

@krakenrelease Your first post is a link to your site with an affiliate link to buy a controller? I don't think so.

Link removed - I was going to ban/delete your account, but I'll give you a chance to explain why it wasn't spam in case I have somehow made a mistake.

@bifelix89 set the "a" button as your hotkey in emulationstation start menu controller configuration. Just so the hotkey option gets generated. Now open up the file /opt/retropie/configs/all/retroarch/autoconfig/NameOfYourController.cfg . Find the part for exit and hotkey. Assign the number that is your start key to the hotkey and change the exit to another key. (Not b or x as they are used for other options)

Thanks for the quick reply! I guess I was having a brain fart that was easy lol

Thanks. When my new controller comes in the mail. I will retry it though the retro arch menu. If that doesn't work. I'll just manually​ edit the config file.

I figured it out, at least for Nintendo.
I had been testing in Atari 2600, attempting to tweak both the retroarch.cfg file under /opt/configs/atari2600, in addition to the file under /opt/configs/all/retroarch-joypads/Microchip Technology Inc. Ultimate 2.cfg

I was doing some testing on Nintendo, and ended up doing the final modifications under the Microchip file referenced above.

Here are my settings, and "Enter" (19) is my new hotkey, and "6" (13) works to exit!

input_device = "Microchip Technology Inc. Ultimate 2"
input_driver = "udev"
input_l_btn = "14"
input_load_state_btn = "14"
input_start_btn = "12"
input_exit_emulator_btn = "13"
input_down_axis = "+1"
input_r_btn = "17"
input_save_state_btn = "17"
input_right_axis = "+0"
input_state_slot_increase_axis = "+0"
input_select_btn = "11"
input_left_axis = "-0"
input_state_slot_decrease_axis = "-0"
input_up_axis = "-1"
input_a_btn = "0"
input_b_btn = "1"
input_reset_btn = "1"
input_enable_hotkey_btn = "19"

Hope this helps someone.

Thank you for doing what you do.

@XVO That's actually not too terrible since it comes with controllers (assuming they work well).

@mediamogul

I ended up making a little pull tab...

Thanks, I'm going to have to give this a try!