Free games.

So, uh, if you happen to have the trial versions of SNK’s Garou: Mark of the Wolves, The King of Fighters ’98 Ultimate Match, Metal Slug 3, Samurai Showdown II or Metal Slug Double X sitting on your Xbox 360 HDD, listen up.

Modern Warfare 2, either a retail copy or the new demo, will let you play the full versions of those titles, with achievements and everything, if you quick launch one of them from the Guide after you’ve launched MW2. Nobody knows why this works, but it works. Get while the gettin’ is hot, cheap asshole gamers, because no doubt a fix’ll come down the line soon. Nah, I’m just joshin’. You absolutely should not under any circumstances exploit this bizarro glitch. Be good, children.

via Worthplaying

I don't have any of those games. I'm sure lots of ppl will buy mw2 just to play them tho xD

Neither do I but I know a lot of the people here have MW2 so I thought better of instinct and posted it up

Also, I'm typing blindly lol. Gotta love touchtype.