Pachi-Pachi's death screen quote mentions the phrase 'Your bell has rang', which is a slang term referring to someone getting a concussion.Pachinko, as mentioned above, as the name of the debug level ID.Pachi-Pachi's name is based from the word Pachinko, which is a type of mechanical game originating in Japan and is used as both a form of a recreational arcade game and much more frequently as a gambling device.The Deluxe+ artbook also reveals other names considered for the Pachinko boss: Churippu (a direct transliteration of the katakana for translating 'tulip' in Japanese, a reference to win pockets also being called 'tulip catchers), Jara-Jara (a commonly used onomatopoeia for pachinko machines), and Koatari ('small jackpot', referring to a point reward system present in many pachinko machines).Despite the debug level ID being Pachinko, the localization files list 'Pachi-Pachi' as their name.Pachi-Pachi might have been intended to be used on spaces 10-12, along with The Light and Card.Pachi-Pachi is by far the most complete of the unused bosses still present in the final game's coding, having a complete set of fully-animated sprites (including intro and knockout sprites) and a near-final stage design.The Deluxe+ artbook that came with the First Release physical edition in Japan reveals why Pachi-Pachi was cut: the gameplay flow of their fight was deemed too similar to Pirouletta.

One of the reasons Pachi-Pachi may have been scrapped was to not make All Bets Are Off! unfair, or to so the spaces were accurate to the board King Dice uses.Pachi-Pachi's death animation would have consisted of their eye-popping out of its socket, starting to explode while rocking back and forth. As the boss took more damage, they would move faster as more balls started falling. Balls would drop from the top of the arena, which would cause the platforms to tilt. It could easily be dodged by moving the opposite way as Pachi-Pachi, as it shortly disappears 3 seconds after it is fired. Pachi-Pachi would move across the room, occasionally shooting a beam of fire through the hole of their head. In the intro before the battle begins, Pachi-Pachi turns on their ears, grows two horns in the top of the head and their nose, and begins to fight Cuphead and Mugman. Very little is specifically known about Pachi-Pachi's personality, apart from the fact that they seem to enjoy talking in rhyme, as evident by their unfinished death screen.

Cuphead king dice boss