Head on over to Rage HD's main menu and you'll find the 'Store' button. Just give that bad boy a tap and you'll be greeted with the option to purchase (for .99 USD) two new levels- Kraken (as in 'release the-') and Aqueduct (which is basically a sewer... charming.)
Battle your way through the hit of the wastelands, Mutant Bash TV, when you’re cast in the starring role of a post-apocalyptic game show. You’ll be stalked by hungry mutants while you scour pulse-pounding levels for ammo and cash pick-ups. Make a deal with J.K Stiles, the show’s menacing host, and see if you have what it takes to survive this carnage-filled carnival of death!A 'carnival of death'?!? I haven't been to one of those since I was but a lad... won a teddy bear.