I never knew The Bureau of Missing Villains existed - thanks Major Hoy!
I love these crazy Batman villains and want to revamp them all.
In the 70s when I was a kid, a friend had a Batman storybook and record set that was about Man-Bat and the "SCREEEEEEEEEECH" sound effect on the record for Man-Bat's echolocation was tErRiFyInG to me!
This reminds me that I have Terrible Trio storyline to work on and finalize, along with another Batman story that uses a lot of these more colorful and gimmicky characters, in the vein of King's work on Kite-Man.