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.
Passed wave 36 in Infinite Mode.
Completed "Stolen Artifact" flawlessly!
The end of a page.
Completed "Defenders of the Elder" flawlessly!
Completed "Face Off" flawlessly!
Passed wave 24 in Infinite Mode!
The boss of the logicians, your enemy?
Completed "Stone Dragon" flawlessly!
Completed "Clearing a Path" flawlessly!
Completed "The Lost Fortress" flawlessly!
Completed "Counter Attack" flawlessly!
The elder revealed the truth of this age for you.
Completed "The Owls" flawlessly!
Completed "Treetop Battle" flawlessly!
Completed "The Demented Doodles" flawlessly!
The hotspot for creativity!
Completed "Brethren" flawlessly!
Completed "Target Practice" flawlessly!
Completed "The Battleship" flawlessly!
Passed wave 16 in Infinite Mode.
Completed "Training on the rocks" flawlessly!
You are a good enough idea.
Passed Wave 8 in infinite mode.
Welcome to the Spring!