Second

I don't think the shooting is working, a projectile files immediately after starting the game the first time, and then never files on subsequent plays

You can only shoot one projectile per second.

Pretty fun, but tough. I only got five.

Better explanation about how to play the game could've been had. For instance, until reading your above comment, I thought I only had one bullet througout the whole game.

I got 12 points! What... was I doing? I just hid in a corner and clicked continuously. Still, pretty nice looking game with a neat/weird "OK NOW YOU ARE PLAYING" vibe.

Enemies are way too fast paced compared to the player. Meh, could have been better.