Yesterday I started a No Ninpo No UT run of NG2. Completely CH1 today, only Rasetsu gave me trouble but it was because I was using the Lunar aerial XXY instead of XXBY, so he often catched me on the way down. I'm using items because I'm not good enough (and don't have enough patience) to push myself further than this. So far I only used one Herb during the Rasetsu fight.
The only additional rules I'm adding are no Essence farming when there are infinite farming spots and a couple of sections that I'll consider Bonus Credit (and thus I'm allowed to complete normally). These sections are: Gigadeath, triple Rasetsu fight and the Centaurs fights (aside from the sections where you need to use the Bow UT like the Golden Dragons and Archfiend 1). I'll also try to not skip fights and to not abuse despawns, but that's not a strict rule.
The only additional rules I'm adding are no Essence farming when there are infinite farming spots and a couple of sections that I'll consider Bonus Credit (and thus I'm allowed to complete normally). These sections are: Gigadeath, triple Rasetsu fight and the Centaurs fights (aside from the sections where you need to use the Bow UT like the Golden Dragons and Archfiend 1). I'll also try to not skip fights and to not abuse despawns, but that's not a strict rule.