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