Another topic, another list, huh? Here's mine.
All games 1CC'd on Normal.
HRtP, LLS, MS, EoSD, PCB, IN (Final A and Final B), PoFV, MoF, all 1CC'd on Hard.
HRtP and PoFV 1CC'd on Lunatic.
The Dream Twins, the Grimoire of Alice, Flandre Scarlet, Ran and Yukari Yakumo, Mokou Fujiwara, Suwako Moriya, Koishi Komeiji, Nue Houjuu, and Mamizou Futatsuiwa defeated. The entire Prismriver Trio unlocked in PoFV.
All Last Words captured in Imperishable Night.
Not bad, I guess. Although it's been about two, two and a half years since I started playing (when the Weather Patch for Hisoutensoku was out, not the full English Patch), I only started 1CCing more than Lotus Land Story back on July 4th of last year, with a Normal Clear of EoSD.