Rem

Rem is a deadly form of computer code used to guard high-security information in the world of BLOCKOUT. According to Jack, many people believe it originated in a black-ops project by the New American Republic or the Payless-Domino's cartel, although he believes it was created by "some psychotic purely for fun". Victims of Rem lose memory or motor skills, or suffer seizures or strokes.

The disk is originally guarded by a pair of bots armed with Rem, but Jack manages to defeat them and gain a copy of Rem for himself.