Gameplay Metal Slug 6 returns to the Rebel-Martian alliance featured in Metal Slugs 2, X, and 3, but on a much broader scale. With help from the Rebels, they rescue the captured Martians and succeed in destroying the Queen. However, it is revealed that the Martians themselves are being invaded and eaten by a new race of aliens called Invader and they have turned to Morden for help.Īs the Invader invade Earth's cities, the soldiers fight them off and chase them into the desert, where the Invader Queen has established a nest. After destroying their latest war machine in a long hillside battle, the soldiers confront Morden and discover that he has rebuilt his alliance with the Martians. Together, they proceed into the mountains where Morden's Rebel Army has established an outpost. Marco Rossi and Tarma Roving of the Peregrine Falcon unit and Eri Kasamoto and Fio Germi of SPARROWS are ordered to investigate, and they are joined by two new allies named and.

Plot Once more, the presence of General Morden looms over the world.

Conversion of games from AW to Naomi is already quite a challenge, but that it's now clear to me, problem are all those anti-copying/anti-porting 2.com› Metal Slug 6 Mame ▆ ▆ ▆ To put in short, Sammy, Sega and SNK probably faced a problem of piracy and started putting anti-copy measures quite sofisticated. If we read back the same, then we have extra memory that shouldn't be there and it will crash. You follow me right? In a Naomi will make the whole DMA, PIO pointers go crazy but will be ignored by AW.Īnother one is to try to write to the extra ram that the Naomi has. If we read the same, then we are good, if it doesn't read the same because Naomi has a ROM there, then it will crash or go to endless loop.Īnother trick is to try to send weird commands to the GDROM, which AW doesn't have. Then it will read back from that part of memory.

In memory region 0x10000-20000, Atomiswave has a flash rom and Naomi a ROM, so the AW game will try to erase part of that flash rom, everytime we boot (which btw decreases the life of our flash) and write some values there. The problem I'm facing now and that's the reason for lower pace in releases is that I found out that the new games have LOTS of protections inserted in the code in order to avoid games from AW being ported to DC or Naomi. The conversion process was 'quite simple'. I have also found that the first Atommiswave games had almost or no protection. I will start finding out why and release it ASAP.

I have successfully converted METAL SLUG 6 which works great on MAME but shows black screen on Real Naomi.

Metal slug 6 mame 0139u1