Mine? Not much... I obtained all the achievements in WWE 2k14. That included some online only achievements that required certain ranking position. Not much I know.
Also obtained all achievements in the mass effect trilogy (which isn't that hard tbh) just time consuming.
Edward Kenway from Assassin's Creed 4. The whole game actually is extremely overrated. I had a hard time finishing that game. I rather play 3 or even Unity.