Question Noobs on Raspberry pi 3+

[Leigh_2]

So, i have install Noobs and it works.
I watched a video somewhere online where you can use a usb flash drive to put Retropie on it and connected it to the pi and it will show up in noobs where i can install Libreelect and retropie together. can u

 

[Ralston18]

Your post and question ("can u") is not clear to me.

I think you are looking for some "how to" guidance but I am not fully sure of the intended end results.

First, please clarify your question - there are many, many websites with all sorts of information about building and configuring Raspberry Pi computers etc..

Second, do be a bit wary about any online sources and videos - always good to validate any given "how to" instructions by comparing the steps and details presented.

 

[AllanGH]

I don't believe that RetroPi has been done on the RPi3B+, yet....or, at least, not at the time of my last look at Retro.

If you want an easy to follow HowTo on Retro installation, and can ignore the specifics of a particular hardware build, take a look here:
https://learn.adafruit.com/cupcade-raspberry-pi-micro-mini-arcade-game-cabinet/overview
It's long, but everything you need to do the Retro installation and configs is there.

In advance, please don't further the subject by asking for ROM sources.
Those kinds of inquiries won't be answered--in keeping with the rules here.