If the "Radnet Edition" of Prototype 2 wasn't quite special enough for you, Activision has an even more collectible version. While Radnet is available as a free pre-order upgrade, the newly announced "Blackwatch Collector's Edition" carries a premium $80 price tag.

What's included in the box? An official soundtrack CD, hardbound art book, "The Labyrinth" digital comic, and a 20% discount voucher to the Prototype merchandise store.

The Collector's Edition also includes a voucher redeemable for the first DLC release: "Colossal Mayhem," to be available in May--one month after the game's release. Mayhem will add three new skins, including Infect Heller and Infantry Heller. The DLC also adds three force multipliers and the "Thermobaric Boomstick" weapon.

Both the regular and collector's edition of Prototype 2 will be available on April 24th.