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