The development team used Havok's Vision Engine 8 graphics engine, NVidia's PhysX physics engine, and Xaitment's XaitMap and XaitControl AI programs to create the game.
Similarly, Davey Havok did backing vocals for The Offspring's Ixnay on the Hombre album two years prior.
Subsequent appearances include "When You Wish..." in Justice League Quarterly #3, the "With a Vengeance!" storyline in Superman/Batman #20-24, and in the new Lord Havok and the Extremists series.
Hartley made his official debut on October 4, 1999 against Bruce ‘Havok’ Mills at the Octagon Theatre in Elizabeth, South Australia.
Havok and Wolverine: Meltdown with authors Walt Simonson, Louise Simonson and artist Kent Williams, collects Havok and Wolverine: Meltdown #1-4, Marvel Comics, March 2003, ISBN 978-0785110484
Physics engines such as Havok, PhysX, and Bullet exist as separately developed products to be licensed and included in games.
Angel breaks the news that he, Marvel Girl, Iceman, Havok, and Lorna Dane are confident enough in their powers to leave the X-Men.
Jean Grey (Phoenix), Marvel Girl, Gambit and Rogue, Havok and Lorna, Alpha Flight, Professor X and Cassandra, Storm, Archangel with Husk, Cyclops, Madelyne, Dust, Cable, Lilandra, Sage, Colossus, Hub, and a few others are shown above the crowd looking down from the other side, as it were.