@Flexo55 Sure it is possible. Just think about your requirements.

Which input formats (16:9, 4:3, 5:4, ...) and resolutions (1920x1080, 800x600) should be accepted on the HDMI side? Which output standard should be supported? (NTSC/PAL or both?) Which framerate you need for your CRT (50Hz/60Hz/...)? Shall it support conversion options when converting e.g. from 16:9 (in) to 4:3 (out)? Do you also want HDMI audio looped through the device or will you use the Pi's headphone jack or USB audio? Do you want extra filters supported by the device, e.g. blurring, scanline modification, ...?

This might be one device as example: https://www.startech.com/en-ch/audio-video-products/hd2vid2 (obviously you need a Micro HDMI to HDMI adapter)

I would also ask or research in some AV forums on recommended products for your project and your requirements.

Plug your controller setup in your Pi without any other controller except the keyboard, boot it up, close ES and run this

ls /dev/input/

It should show all input devices of which joysticks/joypads are shown as jsX (eg. js0, js1, ...).

If it is not present, try to look if the USB device is present with

lsusb

If a controller is present and you want to test if the device translates the PS2 buttons correctly, run this and test

jstest /dev/input/jsX

Never mind, I didn't realize when I saved the python script it saved additional embedded formatting. I just had to download a straight text editor and it is working fine. Thank you.

What game was it? Can't see what you were talking about any longer :)

It turned out that I was just using a cheap ass micro USB cable, when I replaced it with a quality one the issue stopped happening, thanks anyways guys

@battlecat

A normal pi (not zero) supports analog over CVBS but its interlace so it will look shimmery.

I believe it may be possible to get it to output 25p over HDMI, convert to VGA, then convert to RGB on scart lead using a cable like this http://www.ebay.co.uk/itm/Cable-VGA-RGB-ARCADEVGA-SCART-CON-JACK-SONIDO-EUROCONECTOR-JAMMA-ARCADE-/131577748414?hash=item1ea2a51bbe