Melee combat is just one of Rage HD's newest features in update 2.0. There are also two new episodes, Kraken and Aqueduct -- which players can purchase together for $.99 from the in-app store -- to play through and full iOS 5 support. And, for the best viewing experience, the app also supports HDMI out, in case you want to host your own Mutant Bash TV murder party.
Just, uh, don't tell people it's a murder party. They might get the wrong idea.