It seem to me to that the devs felt obliged to put games in the shmup genre because they were quite common in the 1980s, but without really knowing how to do it.
Xevious from 1982 is more advanced n terms of game design than all the UFO50 shmups.
I also think that shmups are too βpureβ a genre, and the UFO50 games don't try to hide the fact that they're indie games (and not βretroβ games), and because indies apparently can't make games without adding gimmicks, UFO50 shmups have become too gimmicky and silly.
And finally, Star Waspir is probably the worst game of this kind I've ever played, at least considering everything from 1982 onwards.
Xevious from 1982 is more advanced n terms of game design than all the UFO50 shmups.
I also think that shmups are too βpureβ a genre, and the UFO50 games don't try to hide the fact that they're indie games (and not βretroβ games), and because indies apparently can't make games without adding gimmicks, UFO50 shmups have become too gimmicky and silly.
And finally, Star Waspir is probably the worst game of this kind I've ever played, at least considering everything from 1982 onwards.