k-tec, 9 months ago (edited 9 months ago)

Great questions, HexagonSun.

Arcade

There are a few things to check here.

1. Your ROMs should be in the Roms\ARCADE folder on the SD card
2. the ROMs should be in the .zip file format
3. the file Emu\ARCADE\config.json should look like the following:

{
	"label":	"Arcade",
	"icon":	"/mnt/SDCARD/Icons/Default/arcade.png",
	"launch":	"launch.sh",
	"rompath":	"../../Roms/ARCADE",
	"imgpath":	"../../Roms/ARCADE/Imgs",
	"gamelist":	"../../Roms/ARCADE/miyoogamelist.xml",
	"useswap":	1,
	"shortname":	1,
	"hidebios":	1,
	"extlist":	"zip"
}

4. there should be a file in the ARCADE folder called miyoogamelist.xml; this should contain XML entries for every ROM in the folder; the file names in this file should match the ROM files in the ARCADE folder (such as outrun.zip).

Cores

Most of the time, it's better to stick with the default core, but there are a couple of options for choosing a different one.

1. Enable the Expert tab (Apps -> Tweaks -> User Interface -> Show expert mode): with Genesis Plus installed, Mega Drive/Genesis games will show up in the Expert section as playable with that core
2. use Game List Options (GLO): in the standard game list, bring up GLO by pressing Y, and choose a different core; this will only affect the highlighted game and is useful when there are a few games that don't perform as well with the default core.