Earlier this week the latest Spelunker HD DLC was released. Unlike previous packs, this one vastly changed the feeling of the overall area. Despite the change, the pack was still quite amazing.
If you would like to see the horrors of EX 7, check out the video below. Be sure to take note of the bird, as he is very important to your survival of EX 7. Also watch for the number of checkpoints, as this is among the fewest in the game.