Once again reformed, Bad Mr. Frosty is a grouchy snowman determined to stop Dr. Kiln's sinister plot and reclaim the North Pole from Sumo Santa.

Never one to allow evil to triumph, Jim springs into action, showcasing the head-whipping, raygun-blasting, and cow-dropping moves his fans adore.

Happy Harry Houngan is an evil Jamaican witch doctor and master of voodoo with a sinister set of abilities to aid his quest for world domination through black magic.

Most of his attacks are named after Chinese cuisine (such as Egg foo young and chop suey), and he uses utensils like chopsticks, woks, and meat cleavers as weapons.

T-Hoppy is a cyborg rabbit created by Dr. Kiln, who combined the disfigured Hoppy from ClayFighter 2 with mechanical implants to transform him into a living weapon.

Boogerman, another hero from previous Interplay games, joins the Clayfighters to save the day and outshine his old rival, Earthworm Jim.

After being indirectly responsible for the events of ClayFighter 2 (he is mentioned in the manual but doesn't appear in the game), Dr. Kiln's latest scheme is to transform the entire world into clay, allowing him to mold it as he pleases.

His hand, now replaced with a piece of clay, can transform into various weapons such as a propeller, machine gun, chainsaw, jumper cables, and a scalpel.

[5] The development team's goal was to create a legitimate fighting game while humorously parodying popular franchises in the genre, such as Street Fighter, Mortal Kombat, and Killer Instinct.

[5][6] Airey explained that the team aimed to replace the extreme violence of those games with gross or humorous actions: "Buckets of blood and gore get boring after a while.

We want to make a game that stays fresh [...] We think this sort of thing works better than gore because each character has something unique and funny to show".

[5] Once Interplay's artists had sketched out the game's characters, Danger Productions transformed the illustrations into maquettes for plastic molds, which were then crafted into models using clay, foam, and wire.

[5] Airey also mentioned that the team implemented "Spillits" (bits of clay that scatter in 3D space, akin to blood or impact stars in other games) when characters are hit.

[6] For the game's audio, Interplay brought in a sound director from Disney to record the character voice-overs, with a cast that included Rob Paulsen, Frank Welker, and Dan Castellaneta, among others.

The magazine Nintendo Power featured a cover story and an early review of the game in its June 1997 issue, highlighting anticipation for its launch.

[18][19] Before releasing ClayFighter 63⅓, Interplay made significant adjustments, including altering the combat system, changing many fighters' movesets, and removing five of the original seventeen playable characters from the roster due to space limitations.

[23] Sculptor's Cut introduced new storylines, simplified menu navigation, adjustments to the combat system, and a new introduction sequence featuring vocal lyrics, along with other minor changes.

[20][22] The fifth character, Hobo Cop, was omitted due to Nintendo's disapproval; he was portrayed as a homeless vigilante with a penchant for alcohol consumption.

[18] The four characters exclusive to ClayFighter: Sculptor's Cut are:[24] Dr. Kiln's severed hand, mutated by chemicals and transformed into a sentient being, High Five harbors deep resentment towards his former host.

In terms of gameplay mechanics, High Five appears somewhat unfinished; he lacks a ducking Brutal Kick, has only one super attack, and no Claytalities.

As a vicious junkyard dog granted sentience by Dr. Kiln's experiments, Lockjaw uses his powerful fangs effectively in battle, showcasing loyalty and ferocity.

Notably cannibalistic, the Boyz have a darkly humorous trait of tossing defeated opponents into a boiling kettle for dinner, adding to their quirky and menacing charm.

[25] While many reviewers found the game's humor and parody to be effective,[28][33][34] they felt that its shortcomings in other areas left it lacking in long-term appeal.

Next Generation noted, "What's so likable about Clay Fighter 63 1/3—in fact, about the only thing that's likable—is that it's just so damn silly, and it parodies its targets pretty squarely.

[28][32][33][34] GamePro summarized: "Slow action, forced humor, fuzzy speech, frustrating combos, cheesy A.I.—the game is practically a laundry list of what not to do without good gameplay.

"[38][d] Matt Casamassina predicted that ClayFighter 63⅓ would "remain a prominent title in the N64 library for years to come" because the game "is so terrible it sets the standards for bad.

"[33] In contrast, the editors of Nintendo Power, who reviewed the game in both its unreleased and released forms in June and November 1997, respectively, were much more favorable.

[20] Due to this limited distribution and the poor treatment that games typically received at video rental stores, boxes and instruction manuals are extremely rare, and their value increased significantly in the early 2010s.

Nintendo Power revealed that Call of Putty would include all the gameplay, fighters, and modes from ClayFighter: Sculptor's Cut, with an expected release date in late 2010 or early 2011.

[47] In 1999, Interplay commented that ClayFighter had "broken a million" in sales on the Nintendo 64, though it was unclear if the Sculptor's Cut edition was included in that figure.