Galactic Gunner alpha

1.3.0 PATCH NOTES:

- Changed color of player from yellow to blue

- Changed color of bullets from red to light blue

- Changed speed of bullets from 20 to 30

- Added bosses

- Changed power up system so that you must unlock power ups by beating bosses.

- Added new enemy

- Fixed bug where the player might not die on collision with an enemy

- Added pause button

- Changed machine gun power up to be less effective but permanent

- Added health bar

- Added health power up