Here is the full list of all 10 Bliss achievements.
Reach the end of the meadow.
Reach the end of the forest.
Reach the end of the badlands.
Reach the end of the glacier.
Reach the end of the desert mountain.
Reach the end of the game.
Complete the frog challenge.
Complete the demon challenge.
Complete the frozen man challenge.
Complete the sand man challenge.