MAMEWorld Forums - News - Re: DU: Come on baybay, let's do the tryst

> Are there known multiple variants of many of the M2 games? I have a complete
> Polystars squirrelled away and just assumed (perhaps naively) with the lack of
> success that chanes are there were only one revision of each CD. At least if the CD
> is data only it should be an easy check once I dig out the hardware. Mine is more
> than likely whatever the standard version is either way.

well the ones in MAME area

GAME( 1997, polystar, 0, m2, m2, konamim2_state, init_m2, ROT0, "Konami", "Tobe! Polystars (ver JAA)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
GAME( 1997, totlvice, 0, m2, m2, konamim2_state, init_m2, ROT0, "Konami", "Total Vice (ver EBA)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
GAME( 1997, totlvicu, totlvice, m2, m2, konamim2_state, init_m2, ROT0, "Konami", "Total Vice (ver UAC)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
GAME( 1997, totlvicj, totlvice, m2, m2, konamim2_state, init_m2, ROT0, "Konami", "Total Vice (ver JAD)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
GAME( 1997, totlvica, totlvice, m2, m2, konamim2_state, init_m2, ROT0, "Konami", "Total Vice (ver AAB)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
GAME( 1998, btltryst, 0, m2, m2, konamim2_state, init_m2, ROT0, "Konami", "Battle Tryst (ver JAC)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
GAME( 1998, heatof11, 0, m2, m2, konamim2_state, init_m2, ROT0, "Konami", "Heat of Eleven '98 (ver EAA)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
GAME( 1998, evilngt, 0, m2, m2, konamim2_state, init_m2, ROT0, "Konami", "Evil Night (ver UBA)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
GAME( 1998, evilngte, evilngt, m2, m2, konamim2_state, init_m2, ROT0, "Konami", "Evil Night (ver EAA)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
GAME( 1998, hellngt, evilngt, m2, m2, konamim2_state, init_m2, ROT0, "Konami", "Hell Night (ver EAA)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )

The first letter of the 3 letter codes is the region, the 2nd is some kind of 'type' for different cabinet types that require different game code (different # players, different mirror setups etc.) and the last is the revision.

So our Japanese Total Vice is 'JAD' is Revision D, meaning there are 3 undumped Japanese revisions at least.

Battle Tryst is (ver JAC) so presumably the new dump is going to be either JAA or JAB, meaning even there we likely still have a missing revision

so yeah, there are actually a fair few revisions of these. Poly Stars is JAA so possibly there are no other revisions of that, or if there are we have the oldest one.

Even for other 'failed' systems, like Hyper NeoGeo 64 we're clearly missing some game revisions based on the ROM labels etc. If anything it's going to be more common with CD games because it was easier to issue new media.