Hmm there doesn't appear to be an easy way to send it to you over Itch. Are you a Discord user? Or maybe I could send you a link to a Google Drive file?
It sounds like you were having trouble finding sound effects to use. Would it help if I were to send you mine? I collected a small library of bleeps and bloops from Game & Watch systems, including some new ones I made myself.
The shadows are handled by a single shader that I wrote, which affects all the black sprites at once. (That way I can flip sprites horizontally without having to duplicate the sprite with a shadow on the other side.)
For the device, I started with a scan of the real thing, then replaced every piece one by one - the buttons, the purple rim, the stickers, and so on. By keeping the console and the screen as separate items, it's easy to create the full screen zoom effect when you tap the LCD screen.
