Tunnel Speeder 3: Beta 2

Here is the beta 2. Combining a few ideas of yours and a few of mine.

New things:

-Press 'A' for a laser (1000 Points)
-Rockets are now only 500 points
-Rocket damage is wider
-Weapons take up points and lost points are shown
-Tunnel will split into 2 frequently

Please leave comments and any other ideas or critiques you have. Thank you.