NIS America announced earlier this week that this game will be getting a State-side release next year in February 2009.
Prinny: Can I Really Be the Hero, will be a side scrolling action game described to give players an army of 1000 Prinnies (aka 1000 lives).
Full press release can be found here:
http://www.nisamerica.com/images/email/prinny_pressrelease081105_n.jpg