Each of the Derelict's simulations contain four Viruses attacking various pieces of code. Coffee's objective is to purge the simulations of all Viruses, these act as the main battles in The Desolate Hope.
The first three viruses in each simulation appear as a glowing red orb. Once approached, a Virus battle will commence. The fourth virus in each simulation appear as a darker green coloured orb and the final virus (PULSAR) is black with a green aura.