Someone else reviews Kilobyte, and comes to the same conclusions I did when I was 12:
Killobyte starts as an intriguing, well-paced investigation of the virtual reality concept. The protagonist, Walter, explores the game from the earlier 'levels' - ushering the reader through the early ramifications of the new technology. Walter soon encounters multi-player gaming and Anthony, to his credit, deftly explores the repercussions of that aspect as well - a virtual reality world for one is wildly different than a world shared with others. Anthony even does a credible job showing the difference between power-gamers, social gamers, role-players. While Walter is out to explore the new world, others, like the woman, Baal, are merely using it as escapism. And still others are playing to 'win' - ignoring the meaning of the worlds they play in and just trying to rack up points.
Anthony being Anthony, however, the initial promise of the book is quickly ruined. Walter and Baal immediately kick off a romance (complete with VR sexual exploration), based almost entirely on the fact that they're both 'misfits' - Walter is wheelchair-bound, Baal is diabetic (something Anthony touches in repeatedly in his books). Several meandering expositional (yet in no way interesting) chapters later, their budding relationship is spoiled by a HACKER. Hackers, we learn, are the emo terrorists of the future. This one, Phreak, is a lonely kid who reaches out by logging in to Killobyte and heckling people.
And it gets worse.