Survivors were forced to swim through copious pools of blood to escape.
Weebles may wobble but if you drop one from a helicopter hovering a few feet over an active volcano, they will indeed fall down. That's gravity, you know. Not only will they fall, they will melt. It's true. And the same goes for your sun glasses and random objects you can find sitting around inside the helicopter. Oh yeah. Helicopter pilots don't like it when you throw random things from the helicopter into an active volcano. Remember that. It's important.