Chaos Rings Omega was created on 2011-05-19.
Chaos Rings was created on 2010-04-20.
Chaos Rings II was created on 2012-03-15.
Chaos Rings happened in 2010.
Chaos Rings II happened in 2012.
No.
No, You Get World Rings For Doing Certain Missions.
Omega can be obtained in the second stage of the Inward Chaos storyline. However, the Inward Chaos arc is considered one of the hardest, if not the hardest thing to do in the game. Be prepared to die. A lot.
Omega SA was created in 1848.
Lambda Omega was created in 1915.
Omega Red was created in 1992.
Point Omega was created in 2010.
Omega Cop was created in 1990.