RGB Jet

Made in one hour for One Hour Game Jam #110.

Hold the left mouse button to thrust.  The jet tracks better when it's
moving fast.  It turns slowly while thrusting and instantly when
coasting.  Hit the switches to add a random amount to the red, green, or
blue component of the background color.

If it goes off screen, just put the mouse in the center and hold
the button: it will come back.