beamrider wrote:No Vic-20 version to my knowledge.
I think a Vic-20 port would be of a similar standard albeit with blockier graphics, perhaps the sound would be better. It might even be possible to port the C64 version replacing the level data (for 22 columns) and the sprites with software sprites.
I don't think there is any shortage of games waiting to be ported to the Vic, availability of developers is the bottle neck.
I quite agree, and wish that I could help.