New level 13! If a top-down and third person view had a baby. This new play mode has endless possibilities. It preserves the simplicity of controlling the space ship in a 2D plane, but adds a 3rd dimension by sticking the ship on a 3D-surface. The controls are almost like for 3D, but without up-down and spin.
Changes:
-Level 13.
-Player name and music preferences are loaded from last session.
-Some performance improvements for asteroid cloud generation.
-Bullet speed inherits the space ship base speed for enhanced space diplomacy.
