Additional Art Work:
2D Space Kit - Brett Gregory
Deep Space Skybox Pack - Sean Duffy
Portal art from Hansjörg Malthaner (http://opengameart.org/users/varkalandar)
Xbox controller button icons from DogToon64 (https://www.spriters-resource.com/pc_computer/amongus/sheet/158877/)
Star Sprites: <a href="https://www.freepik.com/free-vector/game-buttons-cartoon-interface-stone-metal-gold-texture_12760322.htm#query=button%20asset&position=20&from_view=keyword&track=ais">Image by upklyak</a> on Freepik
Lock sprites from Freepik (<a href="https://www.freepik.com/free-vector/metal-padlocks-different-forms-flat-illustration-set_13146591.htm#query=cartoon%20lock&position=0&from_view=search&track=ais">Image by pch.vector</a> on Freepik)
Cartoon asteroid: https://www.freepik.com/free-vector/sticker-template-with-meteorite-isolated_18345067.htm - designed by Freepik
Lightning: https://www.freepik.com/free-vector/abstract-colorful-lightning-collection-on-simple-background_5779705.htm - designed by Freepik
Prism: <a href="https://www.flaticon.com/free-icons/prism" title="prism icons">Prism icons created by Freepik - Flaticon</a> - designed by Freepik
Spaceships and trigger: https://www.freepik.com/free-vector/modern-spaceship-collection-with-flat-design_2797156.htm - designed by Freepik
Enemy ships: https://www.freepik.com/free-vector/modern-spaceship-collection-with-flat-design_2797155.htm - designed by Freepik
Laser: https://www.freepik.com/free-vector/fire-lines-with-light-sparks-cracker-trail-effect_30698215.htm - designed by Freepik
Menu buttons: https://www.freepik.com/free-vector/multimedia-buttons-design_849205.htm - designed by Freepik
Rainbow: https://www.freepik.com/free-vector/rainbows-collection-with-different-shapes-in-flat-syle_2269154.htm - designed by Freepik


Music:
Menu music and In-Game music by Andrew Demmon
Voice Acting in trailer by Andrew Demmon
Main Theme: Chill Ambient, Music by Coma-Media from Pixabay
Deploying lasers: Laser weapon shot from Mixkit
Ball dying: Laser game over from Mixkit
Bomb hits ball: Falling hit from Mixkit
Portal entry: Lightning whip from Mixkit
Flip walls: Opening software interface from Mixkit
Intro Cutscene: Gothic – dark and tension building orchestral piece with strings, wind instruments and percussion, lots of drama and elements of danger from Zapsplat
Portal reveal color event (prism): Crystal chime from Mixkit
Lightning sound effect: Explosion hit from Mixkit
Can't shoot on trigger sound: Computer digital lock from Mixkit