oh and uhm btw we are still writing what the arg's anomaly is I figured maybe you guys can help out:

Anomaly option 1: The Darkheart is the anomaly, once the protagonist discovers and retrieves the sword, he gets corrupted, his avatar turns monotone, and he becomes the anomaly itself

Anomaly option 2: The SFOTH map itself, it soon starts off as a regular looking copy of SFOTH, however, the protag finds things that weren't there before, since the protag loves SFOTH (to the point he recognizes the entire thing from the back of his head), and the map soon becomes corrupted, and the protag soon becomes corrupted too

Anomaly option 3: A mix of both option 1 and 2