Sony has announced a pre-order incentive for Resistance: Retribution, pre-order the game from select retailers and you will receive a voucher code granting you access to the game almost two months before it ships.

According to SCEA’s PlayStation blog, the demo will feature singe player gameplay as well as the option to try Resistance Connect (a mode that allows gamers to sync up with Resistance 2 for the PS3) with both the Infected mode and Resistance: Retribution Plus.

The demo is available to those who pre-order the game from Amazon, Best Buy, GameStop or Game Crazy. Sony also included a few screenshots from the opening cutscene of the demo to clinch the deal.

Since then Sony has updated the blog to show gamers how to activate Resistance Connect. Insert and load Resistance: Retribution on the PSP, insert and load Resistance 2 on the PS3 before connecting the PSP to the PS3 via a USB cable. Select ‘Options’ on the ‘Start’ menu and scroll to ‘Connect PSP,’ then activate Infected Mode and Resistance: Retribution Plus.

Currently there’s no word on whether European gamers will get the demo/pre-order deal but apparently SCEE will be revealing information about this in the coming weeks so stay tuned.

Resistance: Retribution will be available exclusively for the PSP across North America on the 17th of March.