Konami has launched the beta version of their new rewards program called Konami CORE. Those who want to join in beta testing the site, can be rewarded with a free MGS4 Raiden skin to use in Metal Gear Rising Revengeance.
Be one of the first to access Konami CORE, our brand new loyalty program! Help us beta test our site and receive a FREE download code for the MGS4 Raiden skin for METAL GEAR RISING at sign-up completion! Sign up now: http://core.konami.com/beta
MGS4 Raiden Skin available on PSN and XBLA while supplies last.
Visit this link to participate.
Source: Konami Core