The main draw is the sheer volume of content. Standard players have to buy DLC separately, but the (sometimes referred to as the National Treasure Edition in other regions) integrates everything into one package. This saves you the headache of managing multiple purchases and usually comes at a better price point during sales on platforms like Steam or GOG .
Unlike the standard release, this version is packed with every piece of content ever released for the game. You get:
The complete campaign where you defend Earth from the Zin Empire.
Access to the Dubstep Gun (Remix) Pack, the 'Merica Gun, and alien weaponry like the Rectifier.
