On the rarity guide there is just one GB Test cart. Actually I have two of them. For the one from 1995 they have used the one from 1989, put a new label over the old japanese one, and a new program inside. The one from 1989 has more graphic tests, eg sprites of Mario. The newer ROM is sympler and all in english. Here you have the pic of the 1995 cart. Later I'll add the one from 1989.



I've not been able to dump these with a GBXchanger.