I've taken onboard a few of AuthenticKaizen's suggestions, and there's now a slightly better edition of Disasteroids available.

Same download link, right here
The game's pretty much the same as it was on Tuesday, except with a few added powerups to play around with.

There's also (I forgot to mention this anywhere, but it's in there!!) a "Chill" mode. Hit Tab to start the game, and you play without those little white crazy-ass fragments.
BUT
You won't ever get a highscore in chill mode.
'cos that'd cause all kinds of crazyness if you could!

Out of the powerups that AuthenticKaizen suggested, I've added the following.

b = Bomb - Destroys all rocks within a 160 pixel radius
d = Double Shot - two bullets fly around the screen, as you fire!
t = Triple Shot - three bullets at a time! wootsocks!
s = Shield - a momentary shield, to momentarily shield you.
f = Freeze - stops all the rocks!

They're your basic run of the mill shoot-em-up powerups.
If you'd like to suggest anything else, then pop 'em below. (That goes for powerups, or any other ideas/suggestions)

Additionally, the game could really do with a theme tune, so if anyone's made a decent mod/xm/it track lately... Send it over