A weird project wants to add a new level of danger to video games, by pulling actual real blood out of your arm when your character takes a hit.
Apparently, it's simple to do. A controller's rumble feedback motor output is hijacked and used to power a pump, which would then suck the blood out of you when your pretend little computer man gets shot in the face by the space Nazis and starts to bleed.
The idea is not to punish players to death, but to encourage the donation of blood -- with multiplayer deathmatches turning the giving of blood into a fun and slightly gory gaming fest. And being rumble based means it's instantly compatible with everything. [Kickstarter]