Here is the full list of all 27 Ballpoint Universe - there are Infinite achievements.
The end of a page.
The boss of the logicians, your enemy?
Completed "Stone Dragon" flawlessly!
Completed "Defenders of the Elder" flawlessly!
Passed wave 60 in Infinite Mode! Wow!
Things might get weird from here.
Passed wave 48 in Infinite Mode.
Completed "Clearing a Path" flawlessly!
Completed "Stolen Artifact" flawlessly!
Completed "Counter Attack" flawlessly!
Completed "Treetop Battle" flawlessly!
Passed wave 36 in Infinite Mode.
Completed "Face Off" flawlessly!
Passed Wave 8 in infinite mode.
Passed wave 16 in Infinite Mode.
Passed wave 24 in Infinite Mode!
The elder revealed the truth of this age for you.
Completed "The Owls" flawlessly!
Completed "The Demented Doodles" flawlessly!
Completed "Brethren" flawlessly!
Completed "Target Practice" flawlessly!
Completed "The Battleship" flawlessly!
Completed "Training on the rocks" flawlessly!
The hotspot for creativity!
You are a good enough idea.
Welcome to the Spring!
Completed "The Lost Fortress" flawlessly!