This anomaly is the most difficult of all: it is undamaged, indestructible and immune to everything. She is very aggressive towards enemies and attacks, throws up math questions that are inevitable, and if they hit any living being, they will instantly hurt her as if she had fallen from the 20th floor. This anomaly can only be hurt by math questions and can only be reversed by giving the correct result. Every time you bounce math questions it throws harder and harder: from addition and subtract.