I just tried it, played through Metal Slug 2. Not really much to say here, its Metal Slug and thats what you get The loading is somewhat slow tho. Like if you die, chose contunie and want to select another character it even loads there. No biggie, but still.. There are also some slowdowns (dont know how the original is) when alot happends, but this is liveable.

If you like Metal Slug and dont own the Neo Geo or previous PSX/PS2 versions, pick this one up!