Dead Space Girl." If you don't plan on picking up Dead Space 2 for PS3, which includes Dead Space Extraction, you can still grab the Move-controlled port of this on-rails shooter by downloading it from PSN for $15 today -- or try the demo for free.
If you're looking for something just as bloody as Dead Space, but half as mature, there's also the Bulletstorm demo. It's definitely worth a test drive, if only for the simple experience of tossing a futuristic lasso on a bad guy, yanking him toward you in slo-mo, shooting him a couple times in-process, and then kicking him full-blast into some spikes. Check out the full PSN update after the break.
Choose your platform to view the corresponding release list:
(Note: Continue past the break to view both release lists.)