Recently I made this little not-quite-game for a 48-hour jam, although I only spent about 6-8 hours noodling on it. I have no plans to expand or improve it into a complete game. I just wanted to share it here so the source was available in case anyone else wanted to mess with it.
Here's the description from the entry:
Explore a dark maze with a flashlight from a top-down view. Find and collect the gems by shining the correct type of light on them, and see what message they spell for you.
You can play in the browser. Click the little grey button to the right of the game viewport to make it full screen. The only controls are the arrow keys: left and right rotate the direction you are facing. Up moves you forward, in the direction of your flashlight, and down moves you backward. As you explore, the mini-map will fill out with what you've seen. When you've collected all the gems, the game will let you know that you've won!