Most favorite childhood memories/acheivements ever

What would you say is your most favorite memories/acheivements ever? Mine is when I managed to beat Sonic 3 & Knuckles whilst getting the Super Emeralds and beating possibly one of the hardest games on the Genesis/Megadrive, which was High Seas Havoc (My dad couldn't get past the 4th boss because it seemed too difficult)

My most favorite acheivement was beating Micro Machines 2, because that game was insane.

Beating All 4 episodes of Duke Nukem 3D when I was 3. *Cough cough cough* Naked people everywhere *Cough cough cough* Adult mode on *Cough Cough*

My favourite memory would be either starting Pokémon Sapphire, beating Steven for the first time, or beating OoT.
As for my favourite achievement, it would probably be getting all 100 skulltulas. It took me a lot of backtracking to see which ones I missed on my first playthrough.

I remember when I was seven or so and my older brother's friend (who was about 19 at the time) let me borrow Ocarina of Time because he could not beat it. I had it completed in a week. You bet my seven year old self rubbed it in his face.
Also, I remember finally collecting all of the pokemon in blue version. That was a great day. My last one was electabuzz 'cause it was a red exclusive, I believe, and my friend did not feel like catching that one for me 'cause they were hard to find. My memory may be misleading me but that's how I remember it o.o

My favorite accomplishment? Beating the original Super Mario Bros. when I was four years old. Of all the things I remember, that stands out vividly in my mind. I did something my parents and older sister couldn't do. You can bet when I did it, I called in everybody and said "LOOK! LOOK!" My sister and father were like. "O.O" My mother was like "He's four years old. How did he even get past the first level?"