Panicbox

Haha, well, this is quite fun.  Broken, but fun.

With your visuals, sound, and controls, you've managed to create an addictive and challenging game.  There are only a few quibbles I have with this one:

First, the shooting does not match with everything else.  You can tell this started as an asteroid clone or homage, but the gun really is a vestige of a design that doesn't have a place in the current game.  The game (as I see it) is about dodging an insane amount of stuff for a very clear goal, and shooting only seldom helps that happen.  The rotation is clumsy as well.  It would be better to, say, have Z be a temporary, regenerating speed boost, and X be temp invulnerability (only charged by collecting the maguffin? Could allow enough charge after several "levels" to use it for a second or two).  Both allow the player to dodge things better than "hit the block twenty times and maaaybe it will blow up before you hit it".

Second, the game will occasionally spawn the green orb within the protruding walls.  This is obviously a game-breaking bug, but it was the only time I was truly frustrated.

Third, the login at the beginning was unexpected and annoying.  The idea of having the high score list that's actually linked to a name is nice, but could be handled in a less cumbersome manner. Also, in situations like this, always always always support hitting tab to move the cursor.

There you have it!  This really was well-polished and has a pleasing aesthetic.  A few tweaks along the lines of the suggestions above and this would be a real winner.