In Chapter 2, two of the in-battle quotes the Virovirokun enemy can utter are "Happy new year 1997!" and "I've got a love letter for you." These are references to two infamous real-world computer worms: Happy99, which was one of the first computer viruses to be widely and rapidly disseminated by email, and ILOVEYOU, one of the most destructive computer viruses of all time.
Contributed by game4brains