If you think that something seems somewhat amiss with the Metal Slug 3 that was recently released on Xbox Live Arcade, you're not wrong--the blood has been bleached white. Since Metal Slug was never meant to be a kinder, gentler game, here's a trick to bring back the red, courtesy of Insert Credit.
Just change your 360's native language from English to Japanese and presto!: The hemoglobin will return to your Metal Slug. The game plays the same--some folks are telling me it suffers from some serious slowdown--no matter what color blood you prefer.
Red Blood in XBLA Metal Slug [Insert Credit]