In game music

So I decided to re-play Mass Effect, and until now, I had completely forgotten how badass the end credit song was (M4 part 2 by Faunts) What are some of your favorite in game songs? I'm predicting a lot of people pick the song from red dead redemption.

So I decided to re-play Mass Effect, and until now, I had completely forgotten how badass the end credit song was (M4 part 2 by Faunts) What are some of your favorite in game songs? I'm predicting a lot of people pick the song from red dead redemption.

 
Anubis-Anubis in Skate 2.It was completely awesome,and a great GTA 5 theme song to me :) 
 
EDIT:All the best theme songs come from the legendary GTA.So i must say this one is the best theme song of all time:  

Most of Bioware's RPG's have great theme/battle songs.
Some of the Jade Empire/KotoR/Mass Effect games have awesome songs which I had on my MP3 player.
 
Also must say that The Witcher has some of the most awesome battle music I heard in a long time, very cool!

The last two songs that play in Persona 3 bring a tear to my eye every time I hear them. Same with the Snake Eater theme. My favorite battle theme is the boss fight theme from Nocturne.
 
Also, my favorite intro music belongs to Nocturne as well, and Metal Gear Solid 2.

I think the Mystical Ninja series has had consistently amazing soundtracks, and I seriously wouldn't be able to pick a favourite song if I had to. So here's one of the more popular ones from Mystical Ninja 2: Ryugu Castle (looped for 9-something minutes).
 

Borderlands (There Ain't No Rest for the Wicked), GTA Vice City (everything), portal (still alive). 

I love this song for some reason: 
  

Pretty much anything in Halo is amazing. 
 
The best is the main theme from ODST, i've never liked jazz but that son was amazing.

Most games have amazing music now, even if it is the most under appreciated aspect of game design. The Scott Pilgrim vs The World game soundtrack is pretty amazing. Anamanaguchi did a fine job. 
 

This song is always fantastic, but i've just finished Phoenix Wright 3 recently. The implementation of this remix was one of those truly amazing moments of game audio for me. 
 

  Here's some guwd ones.

  This song is brilliant, the whole soundtrack is.

  Though most of this game's sound track was made of pure earsex. this one: 

  @AlisterCat said:

"Most games have amazing music now, even if it is the most under appreciated aspect of game design. The Scott Pilgrim vs The World game soundtrack is pretty amazing. Anamanaguchi did a fine job. 
 

"

• Mirror's Edge - Still Alive
• Assassin's Creed II - Ezio's Family
• World of Warcraft OST
• Gothic III - Vista Point
• The Witcher - Outskirts of Vizima (Don't know the actual name)
• Bioshock -  The Ocean on His Shoulders
• Metal Gear Solid 4: Guns of The Patriots - Father and Son