The new DLC for Borderlands, Mad Moxxi's Underdome Riot is now available for 800 Microsoft Points on XBOX Live. But is it really worth the cost and what is included in the DLC? We have taken a first look for you.
The Underdome consists of three new Riot Mode arenas (similar to Halo 3: ODST Firefight and Gears of Wars Horde Mode) where you battle 5 waves of different bad guys, with the 5th wave being a boss battle, in a series of 5 rounds. After you complete the only mission available on the bounty board which is to successfully survive the 5 rounds of each arena, a red velvet curtain pulls back to reveal three new fast travels. These fast travels take you to the same arenas you just played however, it is now 5 waves in a series of 20 rounds. I have only completed one of the 20 round arenas, The Gully, and I played the first 15 waves solo before being joined by teammates to help me finish. The downside of the 20 round arenas is they take FOREVER. Playing mostly by myself it took around 6 hours to complete and if you die you start back an entire round (which is better than starting over like in the smaller 5 round arenas). If you don't like battling endless waves of enemies, I would not suggest buying this DLC.
The Underdome DLC also consists of three new vending machines when you first fast travel there, a weapons, ammo and health vending machine. One of the new items available from the weapons vending machine is Bank Upgrades which go up to level 10 and level 10 will cost you $9,999,999 and give you 42 bank slots. What are bank slots you ask? There is now a claptrap who stands behind a counter maning the 'Bank' where you can store your crap or take your crap. You automatically have 12 bank slots to store any items you don't want to sell but don't want to haul around with you either. At any time you can take your items back or deposit new ones however, you can only do this from the Underdome which means, if you are in someone elses game and they don't have the Underdome DLC, forget about showing them that cool gun you have stored in the bank.
Overall, very succcessful DLC and well worth the 800 Microsoft Points. I would say the replay value of Mad Moxxi's is more so than the first DLC, The Zombie Island of Dr. Ned but it is hard to compare the two since they offer two totally different gameplay experiences.
The Underdome DLC also consists of three new vending machines when you first fast travel there, a weapons, ammo and health vending machine. One of the new items available from the weapons vending machine is Bank Upgrades which go up to level 10 and level 10 will cost you $9,999,999 and give you 42 bank slots. What are bank slots you ask? There is now a claptrap who stands behind a counter maning the 'Bank' where you can store your crap or take your crap. You automatically have 12 bank slots to store any items you don't want to sell but don't want to haul around with you either. At any time you can take your items back or deposit new ones however, you can only do this from the Underdome which means, if you are in someone elses game and they don't have the Underdome DLC, forget about showing them that cool gun you have stored in the bank.
The second downloadable content for Borderlands, Mad Moxxi's Underdome Riot has just been announced. The new DLC will include "three new Riot Mode arenas where players will endure an onslaught of Pandora's baddest enemies. Working together, players will fend off the masses as they fight for fame, honor, and more importantly, loot. Mad Moxxi's Underdome Riot also adds a new featre, which allows players extra storage capacity... and the ability to acquire two additional skill points as quest rewards." Sounds like it will be something similar to ODST Firefight and Gears of War Horde mode with additional quests. 
Borderlands has released it's first DLC (hopefully of many), Zombieland. The DLC titled "The Zombie Island of Dr. Ned" is available for download for $9.99 or 800 Microsoft points. In the release, players will have to work with Dr. Ned (no relation to Dr. Zed from Fyrestone) to cure the inhabitants of Jakobs Cove. The release includes new enemies, new quests and rare loot.