I really wish I still had the code, because I was planning on several great things for Packet Racket, since it was first being developed:
Powerups like fast ball, or flaming ball, maybe a ball you actually have to dodge, or making your paddle twice as wide
Online games (hence why it was named Packet Racket)
and much more.
I'm really sorry I stopped working on the game. It was primarily because I was new to Godot. I'm working on some more really interesting games that will all be available again on all platforms, and some games for free. They will be published on this account I'm replying from. I'm working on a futuristic pixel art space combat simulator (look for Star Raid) and "The Turing Machine" which is a game which visualizes how computers work and how anything can be computed with eight simple instructions.