What are the most nostalgic video games or video game songs for you?

[Monobrobe]

The intro for Phantasy Star Online for the Gamecube. Also, the title screen. That game was a huge part of my childhood... There's just something really fantastical about that opening sequence though.

Phantasy Star Online Gamecube Intro

I wish I could say the ending song was also nostalgic for me, but I never remembered it. I always remembered the intro, though. Also it might have been because the ending doesn't play in multiplayer, which we played a lot as kids.
I really wish Sega would give us PSO 2 already, but that's probably never gonna happen...

And then there's Final Fantasy Crystal Chronicles. I only ever rented the game once, but there was one place that left a big impact on me.

Final Fantasy Crystal Chronicles - Mag Mell

This place was just so strange and kinda ominous. I remember I would try to go by with each in-game year that passed, and there seemed to be changes, but I never actually beat the game as a kid. I got the game I believe a couple years back and I finally beat it. It was quite an experience, to be sure.