Maze Game Performance Test

I'm uploading this as I work to (a) ensure compatibility with the Gallery and (b) test performance on the Gallery.

In it's current state (0.6.5):
- Use WASD to move, and arrow keys to shoot (think of it as a two stick shooter, but with the keyboard)
- Press G to switch between normal shooting and Grenades (currently unlimited! for testing...)
- Press E to pick up an item, I to open your Inventory, and don't be disappointed when you realize that the only item implemented so far doesn't do anything!

- There are 12 enemies right now ... they will move toward you continually, and will sprint if they get close to you and have enough energy.

Have fun, and please let me know if you encounter any substantial bugs or slowdowns. Thanks!