I think the name Atlazan just sounds too much like Atlantis to disregard the similarities completely and to be honest I never really looked at the detailed design at the top of those packages. Looking closely at those packs today and some general google searches related to Aztec carvings there does appear to be some similarities between those carvings and what is pictured on those packages. I think your on to something here though. I took it a step further and looked at the headgear being worn on the Conquest of Power packaging and it bares some resemblance to Aztec Headdresses.
Maybe a mixing of the mythologies? Atlantis as people generally picture it mixed with a Aztec mythologies? I am not well versed in Aztec histories/mythology but it doesn't seem to far outside the realm of possibility. Interesting to say the least