Hi Chris!
We're sorry to hear about your experience with the Flashback Blast. We understand your frustration with the product not working as you had hoped, especially with the joystick controls and sound issues. We apologize for any inconvenience this may have caused.
We recommend reaching out to our customer support team for assistance with troubleshooting and finding a solution that works for your AtGames 4k pinball and LG TV. We value your feedback and will take it into consideration for future improvements.
Thank you for taking the time to share your thoughts with us. We hope to make your next experience with our products a positive one.
https://www.atgames.net/arcades/contact/