Released in United States on Feb 22, 2011 at a price of $129.99
The Helghast Edition of Killzone 3 includes the following content:
Authentic Replica of Helghast Helmet/mask and Stand
Exclusive DC Unlimited Helghast Figurine
Killzone Artbook
Killzone Collectors Edition Steelbook with PSN voucher that offers:
Map Pack
Dynamic PS3 Theme
Killzone 3 Soundtrack
All pre-order items (TBC)
Infamous 2 Demo (TBC)