Releasing anything on April first is always a risky thing to do, but if you bundle it with a massive addition to the original game and then release the OST for free, you must be doing something right.
Below you can check out all the tracks individually here.
Guild Wars 2 - Super Adventure Box: Main Theme
Guild Wars 2 - Super Adventure Box: World Hub
Guild Wars 2 - Super Adventure Box: Rescue The Princess
Guild Wars 2 - Super Adventure Box: Sunny Glade
Guild Wars 2 - Super Adventure Box: Town Shop
Guild Wars 2 - Super Adventure Box: Dark Woods 1
Guild Wars 2 - Super Adventure Box: Dark Woods 2
Guild Wars 2 - Super Adventure Box: Warp Worm
Guild Wars 2 - Super Adventure Box: Cave
Guild Wars 2 - Super Adventure Box: Kingdom Of Fungus
Guild Wars 2 - Super Adventure Box: Kingdom Of Fungus Version 2
Guild Wars 2 - Super Adventure Box: King Toad Boss
Guild Wars 2 - Super Adventure Box: Victory!
Guild Wars 2 - Super Adventure Box: Bonus Stage
Guild Wars 2 - Super Adventure Box: River Rapids Preview
Guild Wars 2 - Super Adventure Box: Moto’s Continue Room Of Death
Guild Wars 2 - Super Adventure Box: Rytlock’s Critter Rampage