References to Toejam & Earl, boasts of Soul Caliber pwnage and censored curse words? Yeah, this is easily the corniest thing I've put up on the site since K-Fed back in the day, but any song that manages to work the Contra Code into its hook gets props from me. The song's from MAJA, and if you're looking for even more geeked out raps go check out his 2007 album The Amalgam Project.
To get some street cred back while still maintaining today's video game theme, here's the classic Super Mario Bros.' cut from Smif-N-Wessun: