Yeah, I got the XBox 360 version of Deathsmiles as a birthday present a few days ago.
It's a shame that most of the Japanese voices were not retained, but it's an awesome game nonetheless.
I can make it through most of the game on "Level 3" difficulty without continuing, but the optional level and the final two bosses are a real bitch.
Here's a gameplay trailer to show you what you are missing if you have never heard of this game.
Yeah, it's insane. I'm not sure if I'll ever get full gamerscore on this one.