I prefer the first ideal best makes more sense in my opinion then again we could go with both

well, i was thinking he could have killed off and absorbed most other versions of simon thus obtaining ungodly amounts of spiral power, which drove him insane? or perhaps a situation where he became power hungry and fused with the antispiral, only to be twisted to it's goals; after which he destroys his universe, and is left drifting, destroying all universes to protect against the spiral nemesis, while unwittingly becoming it?

That could work maybe being a alternate timeline Simon after all he looks like the older Simon just a evil version I guess sense he also seems to share the same VA atleast in the English dub not sure about the source VA's But how would the guy be a final boss?

hmm..what about the guy from the first episode of gurren lagann? the one who said "All the lights in the sky are our enemy now, huh?"

Name sounds good no the question is the type of the final boss I still say a omega class reality warping psi mutant(X-men type of mutant basically) or a bang baby(static shock mutant basically) maybe the mutant was being used by the Indiare council all along for there power hungry deeds but Indria himself wasn't aware of the Council's action with the mutant until it was too late at the point the mutant lost control of the power becoming a huge threat to even Indrai himself the mutant threatening all universes from going into none existence or causing huge almost irreversible damage to all universe's

hmm..good idea.^^ perhaps, we could call it "multiverse savior: daybreaker gurren lagann"?

I had a ideal when we reach what seemed to be the final boss (if not final boss)fight in the rp we pull a digimon Xros Wars move(link to scene http://www.youtube.com/watch?v=I9oYVz_3sKY ) as in fuse almost every mech(maybe even beings from a universe that has mech influences in it aswell) from almost every dimension and time into one huge ass motherfucking game breaking hax filled powerhouse we'd just need some name for it. the name ''ultra super tengen toppa gurren God mode lagann'' comes to mind kidding on the name but you get the point end the rp with a bang that would be hard to top and then maybe have the damage from the fusion of worlds be fixed upon the badguy's defeat or leave it fused encase we want to start a new one

Basically that and warp there positive ambitions to a way there positive ambitions are still there but willing to do just about anything to do/achieve. But also there negative ambitions will be even more dark

you mean like having the corrupted draw out the worst qualities of those that he possesses..sounds good to me

I seen that already but thanks I like that ones intro and gave me a ideal have Master Asia being a corrupted version of him being a dick sense well the corrupted most likely would use that to do to he would cause more strife and inner conflict with that instead of keeping Master Asia basically the same