Changelog:

• Added a new boss for the second snow level

• Added an exit from level 4, accessed through a cave

• Previously the text displaying lives and highscore were white no matter what level the player was in.
  This caused problems in the snow levels where large parts of the screen would be white also.
  The text is now displayed in “teal” when in the snow levels to counteract this. The current setup will also make it easy to change the text-color for upcoming levels to, for example, fit them thematically.

• Changed player bullet speed (subject to change)

• Changed the player bullet sprite

• Fixed several minor bugs connected to the weapon swapping system

• Fixed a bug where the snow theme would keep playing in the game over room

• Added the option to restart on death screen

• The transition between being killed and respawning went by almost unnoticed so I added a clear sound to indicate the player dying (WIP)