Here is the full list of all 10 Dark Blocks achievements.
Get the poem Solitude.
Get the poem Destiny.
Get the poem Winner.
Reveal Easter Egg in the game menu.
Clean the blocks in all the rooms.
Reach maximum speed with the ball.
Get ten balls in one game.
Get twenty balls in one game.
Have a big bat for more than 30 seconds.
Hit all the obtained shots in any level into blocks.