Ahh … the wonders of the sci-fi shooter. Anime girls. Big guns. Hi-tech robots. Aliens. Xbox 360 owners are getting a healthy dose of all of these things, courtesy of the Xbox LIVE Arcade re-release of the Japanese Dreamcast title, Triggerheart Exelica. So, does this team of hi-tech heroines have enough firepower to blast its way into the Triggerhearts of hardcore fans of old-school action?