Either getting the platinum in FFX HD or clearing the Farewell chapter in Celeste; neither one is completely fair--I used a guide for parts of FFX & I did look up how long the final stretch in Celeste was because I was starting to break and had to know if I was even close to the finish. Still, they were big accomplishments for me.
Founding member of Raetsel Raetsel Inc.
Currently in a wolf mood, though too lazy to switch accounts.