Just saw a review of this little pedal appear in my YouTube feed, and thought I'd post it here for us KPA users, looking for a backup solution. Looks interesting.
Apparently, it's a inexpensive Ebay item (around 70.00). Probably from China. The reviewer in the video below says the length is about the same as a wah pedal, and about half the width, which is the main appeal for me (other than the sound).
Sonicake Twiggy Blues
https://www.ebay.com/itm/Sonic…&rt=nc&LH_TitleDesc=0%7C0
YouTube Demo Video -
They also have a higher gain version (Haven't checked this one out yet)
Sonicake Rockstage
https://www.ebay.com/itm/Sonic…&rt=nc&LH_TitleDesc=0%7C0
FWIW, I have no experience with these pedals, other than what I see on YouTube, but I am thinking about ordering one.