User blog comment:StarryStar34/Idea 4: Impossimode/@comment-1313357-20120526121937

Exaggerated, even those who bought the premium versions impossimode could shoot that way, maybe get a bronze, at the most. Imagine for others.

And there is in some ways impossible BTD5, as the "apocalypse" in the castle and the node "hard" in "Bloontonium Lab."