Yesterday I decided to convert Bounce from the Sinclair ZX81 to the Commodore VIC-20. The first release candidate is attached to this thread if anyone would like to test it.
I could also do with a VIC musician as there's about 1K of RAM remaining according to FRE(0).
Cronosoft and Psytronik are currently evaluating it for release.
My suggestion is to be patient with the game as something will change eventually