AUDIO:

 

Game_over_screen_beep:

sine octaves up beep.wav by pan14 -- https://freesound.org/s/263124/ -- License: Attribution 4.0

 

rolling enemy sound:

hard drive Hum.wav by Rico_Casazza -- https://freesound.org/s/538927/ -- License: Creative Commons 0

 

laser/ electricity/ beeps:

sound from Zapsplat.com

 

music:

Artist name: Abstraction

https://abstractionmusic.com/