Longest gaming session in one sitting you ever did?

[BraLoD]

Around 18 hours playing Pokémon Crystal during a school vacation trip to my grandma's place.

My GBA had a controller shapped accessory with battery that would plug on its back and make it like a Dualshock controller, which could also be plugged with an AC to the wall to recharge while playing.

My Crystal copy was actually a pirated cartdrige with 7 games (3 being Gold, Silver and Crystal), and the battery on it was faulty, so saves didn't work and I would play and lose all progress when I was finished. Was used to play like that.

I was like 11 years old, did not know english, so playing Pokemon was based on experiencing events and trying different stuff until something seemed to work so I memorized it and the next time I could go further into the game. Which was awesome, as it was also a big puzzle to me.

I was too excited to have made progress in a part I was stuck for too long, but I had to go sleep, and I couldn't fake it as I was sharing a single bedroom with my parents, brother and one cousin (so 5 people), because other family members were there as well and the whole house was filled with people (around 12 people in a house with 2 bedrooms, 1 couch and some space on the floor near it).

I was too excited and could not sleep properly at all, so when the first person woke up in the other room I took the chance to "wake up" as well. It was a bit past 5AM if I recall it right.

I played the game the whole day until like 11PM, even during the family meal times, gladly my mother was too busy with our other family members attention and did not take it away from me, just soft scolded me a few times and let me playing.

This was the first time I got to the elite four, and I had to grind a lot to be able to finally beat them and the champion. It took me most of the day, and I discovered there was more stuff, aka all of Kanto, after finishing it, lol, so I left the GBA plugged all night too, to keep playing the next day, but this time my mom made me stop it really early.

Such great memories, big family gatherings, discovering lots of things in Crystal, got my younger cousing hooked on gaming and specially Pokémon because of it, lol.