@Nexusrex said in Newbie questions (USB Drive, Wi-fi and others):
1- If I have a 4GB MicroSD card, could I load games from a USB Drive, or it will automaticly transfer into the MicroSD card?
https://github.com/RetroPie/RetroPie-Setup/wiki/Running-ROMs-from-a-USB-drive
2- Same question about custom splashscreens
AFAIK the splashscreens stay at /home/pi/RetroPie/splashscreens (this directory is created during the first execution of the splashscreen menu in retropie_setup).
3- Should i use WI-FI or it's just a recommended option?
Network connection is recommended (wi-fi or wired). So you can configure things through SSH, or use retroachivementes, for example.
RetroPie is perfectly usable when disconnected. You'll need a keyboard for some configuration tasks. But you can use it with only joysticks for gaming.
4- I did notice in the wiki, that after the name of some emulators, there is a red triangle. What is that triangle exactly?
Look at the end of the wiki home page, it means experimental.