Goals for the weekend.

1) Implement database - should be SQL, Java asks the user after the end of the game to input his initials and records the scores if the final score is higher than the 20 entries.
2) Add menu - level of difficulty, about - explaining enemies and rules, high scores.(no functionality for now, just GUI)
3) Get more GIFs for the GUI - we need more enemie GIFs, bullet GIF, booster GIFs, boss GIF. Maybe different backgrounds for different levels, etc
4) Add health bar to the player - it should be displayed
5) Implement boosters - increase player health (optional - bullet type booster - takes away more hitpoints)
6) Add boss enemy - appearance of the boss is based on points, just before the end of the level. The level finishes when the boss is killed
7) Add sound to the game.
7) (Optional add level of difficulty to the game - changes player starting health, enemy hit points and number of bullets they shoot)