Be sure to use the correct neogeo.zip file. And where did you place this file? While most BIOS files go into the /home/pi/RetroPie/BIOS/ directory, the neogeo.zip goes into the same directory as the roms. Also, would check via runcommand menu that the default emulator is correct for the rom.

Good luck!

@AlexMurphy

Terrible stuff. I actually have a copy of the shooting script that has the Wookie parts translated on the page. It doesn't improve things. Although 'The Star Wars Holiday Special' certainly holds the crown as the absolute worst, retro-gamers can seek out their own personal nightmare before Christmas with the ill-conceived 'Christmas in Pac-Land'. Theses shows are not without merit however. They're a great stand-in for ipecac if you can't make it out to your local pharmacy and you've run out of eggnog.