I shit you not, my little sister was the first person to discover the Grumble Volcano lap-skip in Mario Kart Wii. She held the world record because of it until people used her ghost to replicate and master it (she'd stumbled into it and was only able to replicate it fairly clumsily with very poor time, the record didn't stand very long). Problem is that I have no proof save for MAYBE data preserved on my Wii, and my Wii can't read discs anymore, so I can't even check and see if it retains any real proof. *sigh* I think she also had a MKWii Rainbow Road world record? but I don't remember clearly; I'll have to ask her about it again. She played the fuck out of that game, and while my second sister and I together were basically unbeatable at DD (locally, not that that's a huge achievement lol), my youngest sister was easily the best of us at MKWii.
What else? One of my older sisters is an NES Tetris wiz. She doesn't like any other version and she'll only play it with a proper NES controller. She can hit the "cap" on the game with some warming up, though she's probably out of practice nowadays. She's very good at racing games, too.
My oldest sister isn't really interested in mastery I don't think? but I remember her being very good at platformers. Haven't seen her game in years though; she lives about 300 miles away.
My parents used to keep graph paper so they could chart out maps in video games. I think we still have their maps in a manilla envelope, though I'm not sure where it is? They both like SRPGs, with my mom favoring Total Annihilation/Dungeon Keeper and my father favoring Warcraft2/Starcraft1, but they have pretty broad tastes. My mom also really like Destroy All Humans! 1-2, Dragon Quest, Legacy of the Wizard, etc... my father liked games like Dungeon Master (modern equivalent would be Legend of Grimrock).
Edit: *facepalm* I can't believe I forgot to mention this. My father's second brother actually modified their NES when they first got it, rigging it up to a small screen and a battery pack to make a portable NES. I always forget to ask what happened to it; I would have loved to have seen that.
that's one hell of a gamer family lol
i'm the only gamer in mine
---
Puss in Boots was a good movie and it deserves more recognition