Aster...oids?

Inspired by the classic and the version by @PowLow_Paolo && @Sadface_RL!

Controls: 

Rotate left and right with A and D

Move foward with W

Move backwards with S

Fire asteroids with SPACE

Mute sounds with M

Update 0.4

Added Fire upgrade - Asteroids pass through targets.

Added Ice upgrades - Asteroids freeze targets.

Changed Enemy Colours.