The Textfire Demo 12-pack was released on April Fool's in 1998, claiming to be demos of an upcoming commercial studio called Textfire.
In this game, you are a heart. You can pump, or wait. I died when I played, but at least one other person lived.
It was actually really reasonably put together. I liked this game! But it really is a joke demo, which is why I didn't rate it higher.