Well considering you attempted this 4 hours before the deadline I'd say you gave it your best shot. Particles are nice, I had a friend who also tried this "close but not too close" idea before as well so I'm always a big fan of that...

But I think a certain comment summarized the problem quite eloquently: "I seem to do better when I don't do anything". The initial configuration, no matter how artistic, leads to this awkward situation where if you stay in the center you'll be able to survive for a very long time.

Nice idea, but please give yourself more time to work next time. Cheers!

Very nice mechanic, I wish you would have put more time into it, but it´s a nice start for just 4 hours :)

I think this is a great start. especially for 4 hours! The main mechanic of balancing the two bars is really nice and could be used to great effect. As it is its a hard to do anything intentionally. Most of the running into ghosts or away from them relies on their spawn patter so the player doesn't have much control. Polish this up a bunch add a goal, Menu, more content and I think you might have something good

A testament to how much one can accomplish with the least amount of effort possible. 

Very cool idea for a game, I think it would really flourish if you could implement a UI and add some randomness to the ghosts.

I started this game 4 hours before the deadline.