Top videogame tracks. Part 1

So its been a while since a made a proper list. I like to go back from time to time and look at gaming and its ability to create unique experiences. The time has come for music again. This time I´m doing it with a twist tho. I´m going to single out specific tracks instead of whole soundtracks. I´m going to look at the song´s composition, its placement within the game, its ability to create a certain mood and the power of being remembered.
As usual theres really no right way to create such a list so keep in mind that this is only one version of a list that might have looked differently had I made it at a different date. 
Ive also tried to not pick the most obvious ones. It remains to see however, if I will succeed at this or not.
But I´ve thought long and hard and my hope is that it will at least be interesting.  
Feel free to add your own aswell !
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Number 20: 
Chip N Dale - Rescue Rangers, NES, Stage J Theme
 

Number 19: 
Castlevania, NES, Vampire Killer
 

Number 18: 
Dungeon Keeper, PC, The Horned Reaper
 

Number 17: 
Donkey Kong Country, SNES, Final Boss Battle 
 

Number 16: 
World of Warcraft - Wrath of the Lich King, PC, Sholazar Basin
 

Number 15: 
Bionic Commando ReArmed, Xbox 360, Heat Wave
 

So its been a while since a made a proper list. I like to go back from time to time and look at gaming and its ability to create unique experiences. The time has come for music again. This time I´m doing it with a twist tho. I´m going to single out specific tracks instead of whole soundtracks. I´m going to look at the song´s composition, its placement within the game, its ability to create a certain mood and the power of being remembered.
As usual theres really no right way to create such a list so keep in mind that this is only one version of a list that might have looked differently had I made it at a different date. 
Ive also tried to not pick the most obvious ones. It remains to see however, if I will succeed at this or not.
But I´ve thought long and hard and my hope is that it will at least be interesting.  
Feel free to add your own aswell !
-------------------------------------------------------------------------------

Number 20: 
Chip N Dale - Rescue Rangers, NES, Stage J Theme
 

Number 19: 
Castlevania, NES, Vampire Killer
 

Number 18: 
Dungeon Keeper, PC, The Horned Reaper
 

Number 17: 
Donkey Kong Country, SNES, Final Boss Battle 
 

Number 16: 
World of Warcraft - Wrath of the Lich King, PC, Sholazar Basin
 

Number 15: 
Bionic Commando ReArmed, Xbox 360, Heat Wave
 

Wow, awesome list. Looking forward to see the rest of your list. :D

Gotta love Vampire Killer

We'd better see a Phoenix Wright game in here somewhere.

Monkey Island music should be in part 2.