I'm currently level 118, and I'm stuck in the second fight with Mephy since Momo keeps diying. When I went on youtube, the videos I saw had the player chara just solo Mephy without Momo. At my level, I use bows btw, I only got this far just because of my level 80 Hound Dog and help from higher leveled players. At this point though, I barely do damage to the bosses in the game, or even most of the monsters (looking at your gargoyles), and I've been spamming Exorcist Shot and Amaya's. I keep ramping up my weapons, but they don't do much for me, I still barely do much.
How do you end game players actually reach that end game status? Is it good weapons? Some magatama? Fighting something like Mephy with shit damage for 60 minutes or more?