Hobo Cop was a character in ClayFighter 63⅓, but cut from the final version for many reasons, the most well-believed being that he was too controversial. In early screen shots for ClayFighter 63 ⅓, Hobo Cop was said to use attacks based on alcohol as well as flashing his genitals. However, like many other fighters in this beta, attacks like this were probably removed (such as Lockjaw Pooch using urination or the Zappa Yow Yow boys eating their opponent alive). Despite the common belief that Earthworm Jim took Hobo Cop's place after he was removed, this information is not true as Earthworm Jim was hinted at being included in issue 97 of Nintendo Power Magazine, which included the Hobo Cop bio you can see below. His homestage would've been Rubbage Reef, which he would've shared with Lockjaw Pooch (also confirmed from Nintendo Power). His data can be found in the Clayfighter Extreme psx demo and a short gameplay clip of his idle animation was posted online by Mike Mika.
Since it was to be a simultaneous release and being banned from the Nintendo 64 version, Hobo Cop being a selectable character in the PlayStation's ClayFighter Extreme beta hints he could be an exclusive character for that version.