5:05
Portal Prelude - Credits Song 'In The Beginning'
pinheadenator
8:12
Portal Prelude - Ending Level (final part) GLaDOS Final Fight
6:53
Portal Prelude - Ending Level (part 1)
6:42
Portal Prelude - Ending Level (part 2) - GLaDOS activation
5:09
Portal Prelude - Ending Level (part 3) -Morality Module
3:23
Portal Prelude - Menu music - Larmes
1:09
Portal Prelude - Chamber 10
4:30
Portal Prelude - Menu music - Particule
1:51
Portal Prelude - Relaxation Vault (Chamber 0)
