The Forbidden Power is an antagonistic entity appearing in Kirbopher's flash animated webseries TTA. It is a virus created by DarkEyesOfAnubis in the original series meant to protect the game that ended up becoming an instrument of destruction. The Forbidden Power is eventually discovered by Alpha and makes a deal with him to allow him to become stronger, however, in this deal Alpha gets more than he bargained for, and the Forbidden Power stays a major antagonist throughout the series.
- In TTA, the "Forbidden Power" is actually a monster known as Kagemamoru, and the true forbidden power is a dragon known as the D-Bug that is activated when Kirbopher15 slices the numerical sequence "1111" with his sword. This is a nod to how "1111" is 15 in binary.