I don't have the same Metal pedal so I can't help you with that, however I do have a few of the others in the range.
Some of the Cool Cat range have extra dip switches to play with, these are located in the battery compartment and might not be obvious if you have velcro stuck under the pedal or always use a power supply.
I bought one of their distortion or overdrive pedals online, and thought it was the worst POS ever !
Before sending it back in disgust (honestly thought it was broken) found a dip switch that gave it an 8bit sound, turned that off... pedal sounded pretty good.
Suspect the seller didn't know any of this and was trying to offload what he also thought was a faulty pedal, probably why I got it at a stupidly cheap buy it now price.
The Cool Cat Vibe is a gem.