assets:
  - assets/nebula.png
  - assets/sprites.json
  - assets/sprites.png
  - assets/starfield.png
  - assets/game_ui.png
  - assets/game_ui.json
  - assets/explosion.wav
  - assets/laser.wav
  - assets/levelup.wav
  - assets/pickup.wav
  - assets/temp_music.aac
