Hey, Joystiq Biomass -- does anyone know the steps you have to take in order to establish a national federal holiday? We'd like to pitch Uncle Sam on turning April 27 into "National Silhouette-based Platformer Day," as it was recently announced that Cave's shadow-puppety XBLA title Nin2-Jump will arrive worldwide on the 27th, right alongside the similarly backlit action-platformer Outland.

As promised, Nin2-Jump will arrive on the platform at 400 Microsoft Points ($5), and the proceeds of your purchase will go to the Red Cross' Japanese disaster relief efforts.

This article was originally published on Joystiq.

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