Your favorite GAMEBOY soundtracks?

I still hum the Sneaky Snakes tune every now and again. I can't find it on YouTube after a rather cursory attempt though. Sorry.

And Tetris, obviously. Theme B in particular.
 
Donkey Kong Land 2 for sure. Kirhkhope did a great job
https://www.youtube.com/watch?v=NVWheuMg0c8

And of course Pokémon Blue
(red too)
https://www.youtube.com/watch?v=axKDCZd4Mfc

After that, in no particular order:

Puyo Puyo
https://www.youtube.com/watch?v=fG_oTvf9-uE

Soreyuke!! Kid (AKA Crazy Castle 3)
https://www.youtube.com/watch?v=3NxpsOMR4cg&list=PL416BBF5232A60178&index=5

Bubble Ghost
https://www.youtube.com/watch?v=JGcv5tPLW7s

Game Boy Camera
https://www.youtube.com/watch?v=pZx8Gaoooro&list=PL7FE0779E0DABB660&index=2

Metroid 2 (This must be one of the best GB songs of them all)
https://www.youtube.com/watch?v=453temu5BIg

X (Blame Sakurai)
https://www.youtube.com/watch?v=pTzPj_RcIy4

Anything Kirby or Zelda, really.

Edit:
Also this one I haven't even played for having the best OP opening
https://www.youtube.com/watch?v=kEnvFS_gDrc&index=2&list=PL5YdbMaKCdohvMnWolwoyRR-l-Qb0kSx9