SSS Stage1 part3

Stage 1, more enemy formations and enemy bullets.
Now I am trying to make the player bullets type 3.

Enemy formations 1.

Enemy formations 1. Hard difficulty.

Enemy bullets, type 2.

Enemy bullets.

Boss fight warning......
I haven't made the boss yet.
But I think I need to have some rest.

- Added boss fight music.
- Added more enemy behaviors.
- Changed enemy bullet behaviors.
- Changed enemy ship pic replaced with 3d object.
- Fixed enter stage1 doesn't reset all variables.
- Fixed stage1 can't go back to title.
- Fixed enemies respawn and destroy functions.
- Fixed boss fight music fade in.
- Fixed tracing laser movements.