Originally Posted by
landman
Multiple universes can actually have interesting connections, an example would be xenoblade 1 2, X and other Xeno games, where basically something (akin to the 2001 space odyssey monolith) from another dimension gives a lot of power, and someone even uses this power to see the birth of a new universe. They will never make a clear line between all the series, since one is square, the other namco and the other one nintendo, sega does not have that problem but they just don't care.
Gurhal is just fanservice, in the end in psp2 we just discover it's a breeding place for an ancient race to be reborn using them as hosts after 20 millennia, the fact the system is similar to algol, that there are newman and CASTs, an people named to algolian characters is pure coincidence / fanservice, and in the end I think omega is the same.