Can't turn off SFX. The last game I played had no mute option at all.

This is the first HTML5 game on this site which I have actually enjoyed. Most other HTML5 games mostly screw up or have horrible detection when pressing buttons etc.
I thought 2 things made this game interesting. First is that you can only fire the next shot once the first one have hit something, it makes for a new mechanic in a game like this. However, due to the lack of content, the whole "gotta go closer to fire faster" gimmick goes to waste, but I think it would've been a great game alone if you built on that.
Second is the 3d thing. When games try this, swapping perspectives or other game changing events, they mostly fail or makes it a pretty unmemorable experience. This game didn't do that. When it first happened I actually thought that it was pretty cool, rather than the usual meh.

I haven't finished the game yet, but as far as I could see there were only 6 levels, and not much other things to do beside those levels, but that's all the complaints I got.

Wouldn't load, stuck at the screen saying "Preparing...(87/195)".

Very good, I liked the retro feel. I found that when the power up that changes your perspective drops, I want to avoid it though because right after it ended there was a shoot right in front of me.

To others who experience any problems with their browser, firefox and google chrome among others are great browsers and they are free.

I digress, I liked when the game switched art styles,, it gave the game major style points, but when it went B&W it lost some detail that made me slightly confused.

Add more art style changing :D

I have wait 10 minutes it isn't working for me -.-*
Using Mac - Safari Browser
I think you should look for cross platforming browser support before you upload a game! -.-.