Dead Nation: Road of Devastation | Housemarque

Dead Nation: ROD is DLC for the original Dead Nation.

BACK ON THE ROAD

In Road of Devastation, a frantic laboratory escape is followed by a choice of three different roads – each with its own rewards, dangers, environments, items and enemies for you to discover. Choose your path and confront devastation!

Great DLC for a great arcade shooter
PSM3 Magazine UK
it's hard not to recommend this add-on
PlyaStation Universe
the lighting is still some of the most amazing effects I have seen in a game
ZTGD