As she puts it:
The Japanese artist said he was given some Batman comics and told to replicate the feel of them in manga style, but he pretty much copied Detective Comics #353 for the Go-Go story…with one major difference (mentioned below). He also used Clayface in a story, and some villains who appear to be fairly original (although one is somewhat reminiscent of Gorilla Grodd), including the awesome Lord Death Man.
It’s not clear why the artist replaced the Weather Wizard with a new villain, though the comment thread speculates that rights may have had something to do with it — or what “Go-Go” has to do with weather control. (Of course, this was the era of go-go checks on DC’s covers.)
Speaking of Detective Comics #353, it’s got a great classic cover showing the Weather Wizard physically stepping out of a Flash comic book and into an issue of Detective Comics.
More scans — of both the original and the manga versions — are available at the flash_rogues post.