Serious Sam Double D XXL is a fun, over the top, side scrolling shooter from Mommy's Best Games set in the Serious Sam Universe. It was released on PC and then received an Xbox Live Arcade port. There was one key difference between the two - the XBLA version featured local co-op play, which the PC version lacked. A new free update changes things adding a new content to the PC version.
Two-Player Local Cooperative Play – Serious Sam can pair up with his new buddy Huff to slaughter Mental’s horde together in an orgy of violence and destruction
· Gunstacker Upgrades – Over 30 new guns to mix and match in towering stacks of awesome
· New Campaign and Challenge Missions – Players can tackle new missions and take to the air in their very own missile-loaded Pterosaur or roll through foes on a dynamite-powered unicycle
· New and Upgraded Enemy Classes – The new Torcher Kitty, Explosion Eater and the Armored Gnaar are all stepping into the arena to wreak havoc to the heroic Serious Sam
If for some reason you don't want the goodies that have been added, the launcher for the game lets you choose a "classic" mode. That said all of the upgrades are something that shouldn't be missed.
