I need advice for ripping Metal Slug sprites.

[I am Kevin lol]

Hey there. I'm hoping to soon start ripping a bunch of full (or hopefully full) sheets from the original Metal Slug, and I need some help.

What is the best Neo Geo or MAME emulator for ripping sprites? Specific features I'm looking for include things like advance frame, OAM/tile viewer, etc.

I'm not at all experienced with Neo Geo emulation, so any help would be greatly appreciated.

Also, I hope I'm not posting this in the wrong section.

[Random Talking Bush]

For the Metal Slug games (as well as any other Neo-Geo game), I'd suggest using Kawaks. It's got a tile viewer, can toggle sprites, etc. Much more convenient than using MAME for those games.