I never bothered with Omega mark 2 and neo-Shinryu. THey jsut felt… tacky. I mean, Omega was supposed to BE the Omega Boss, with Shinryu riding close behind… it lessens their impact to be even stronger versions for no apparent reasons in the new dungeon. besides, trhey’re fucking impossible, Wil. Seriously.
Also on that note I think you have to walk past an additional number of Omegas just to reach MK-II nevermind reaching NeoShinryu.
It’s possible to avoid the Omegas, if you’re quick enough. But there’s nothing but dragon enemies keeping you from Neo-Shinryu.