Will there be a V1.06, that fixes the last remaining bugs? That would be great. Especially the thing with the Autofire, that goes on shooting by it's own, is a little bit strange sometimes in gameplay. Overall it's definately a good game, only a few teething problems should still be eliminated.
I tried your new Galaxian game and there this problem does not occur. I've tried it with two joysticks, both of which contain "rapidfire as long as the player holds the firebutton down" and whenever I leave the button in "Galaxian DX", the rapidfire stops immediately, like it should be. So there it works.
By the way - there in "Galaxian DX" a rapidfire (autofire) doesn't help much anyway, because a maximum of only one shot of the player can appear on the screen at the same time. But with "Galaga" it often helps, because more shots on the screen are possible there and you can shoot several enemies one after the other in Galaga with rapidfire. :-)
Your new "Galaxian DX" is really good, the next great C64 port of a classical Arcade-shooter. WOW!! You know what. If you don't know, what to port next to the C64, then I have a suggestion. The Atari VCS-2600 version of "Phoenix" is fantastic. A little different from the Arcade original of this game (because the VCS2600 couldn't implement it technically back then, i guess), but the Atari-2600 version of "Phoenix" has it's own charm and plays really great. My number-one game on this system since my childhood. To have this Atari-2600 version 1-to-1 on the C64 too, would be awesome! Nothing needs to be changed, "Phoenix" on the Atari-2600 is awesome as it is and exactly like this it should be ported. Maybe you will find time for that at some point in the future, that would be great!!!
Could you have a look at this thing in the meantime, now that it's clear since some weeks, that in "Galaxian DX" this problem with the Autofire don't occure? Then this could be fixed in Galaga too, like you mentioned.
And one question more. Somewhere here in the entries you wrote, that, when less colors would be used for the attacking enemies, technically more possibilities would be there, for improving other things to make Galaga, which is already good, even more closer to the Arcade version. And you also wrote, that you decided against it, because you wanted the sprites to have more colors. Just one question to this - how about a second version and then a selection-function for the player, in the beginning of the game, where he could choose, which version of the game he wanted to play. And then a second version would be created, with a similar look, when it comes to the colors, than for example the game "Tiny Galaga", that came out last year for the Amiga? Only two colors, but nevertheless, it looks and plays really good. Looks like a LCD game on older game&watch handhelds, when it comes to the colors. Everything could be the same like now in your C64 Galaga, just with less colors (two or three) but therefore with some improved other things? What do you think? Player then could choose everytime in the game-menue, which version to play and this version then reloads.