Puss n Boots: Pero's Great Adventure

Puss n Boots: Pero's Great Adventure
Also known as: Nagagutsu o Haita Neko: Sekai Isshuu 80 Nichi Daibouken (JP) Developers: Shouei System, Bear's Publishers: Toei Animation (JP), Electro Brain (US) Platform: NES Released in JP: November 21, 1986 Released in US: June 1990 This game has uncompiled source code. This game has a hidden developer message. This game has hidden developer credits.

In case you were wondering what that one Captain N episode was about...

Puss n Boots is an action game starring Toei Animation's mascot Pero the Cat. It's based on the classic story Around the World in Eighty Days.

Hidden Text

While not actually seen in-game, the string MASAHIRO is used as a RAM check to determine if the game has been soft-reset (with the Reset button) or hard-reset (by turning the power off and on again). Masahiro Yoshihara was a programmer on the game.

Regional Differences

Four years after the Japanese version, the game would be heavily reworked and released in the US. The goal in the Japanese version is to defeat Count Gruemon on top of the Big Ben, in the US version, you defeat the count on top of the Statue of Liberty.

Title Screen

Japan	US

Hidden Copyright/Credits

In the Japanese version, there's some hidden copyright/credits text inside the ROM at 0xEC10 (it appears edited here; the lines were originally separated with periods):

Program and Audiovisual Copyright 10/01/86 Shouei System
Programmed by
Masahiro "ACTOR" Yoshihara
Yasuhide Sakakura
Pictured by
Kenichi "RINA" Suzuki
Makoto "TIYA TIYA PIRAYASHIMUN" Higa
Naomi "PUTTSUN" Satoh
Music by
Kaori "LIONS" Aoki
Ochakumi by
Kyouko "MADONNA" Yoshino
Mie "UMBRELLA" Takano

and at the end of copyright message some other:

WATASHITACHINIAI WO KUDASAI ..

COPY SURUNA ! Kono kurou wo wakattene !

which means "PLEASE, LOVE US, DO NOT COPY! Try to be in our shoes!".

Uncompiled Code

In the US version, there's uncompiled code at D60 in the ROM:

NDC:
	JSR	STEKA
	LDA	#0
	STA	NWK
	JSR	RANDOM
	AND	#11B
	BNE	:NOTAI		; 3/4 not taikyaku
	LDA	#1		; Taikyaku bit on (icchokusen ni mukau)
:NOTAI:
	ORA	TEKSTS,X
	BNE	:JPCUT

STSHIP:
SMOGU:
	JSR	STTEKY
	JSR	X0orFF
	JSR	RN3F20		; 20H..60H
	STA	TEKTIM,X
	JMP	:CNT3

SHCATA:
SHCATC:
	JSR	STTEKY
	LDA	#0FFH
	STA	TEKXH,X
	RTS


STPLANE:
STBALOON:
STSENSUI:
	JSR	STTEKY
	JSR	X0orFF
	ASL	TEKANG,X
	ASL	TEKANG,X	; 0 or 4
:CNT3:
	LDA	#3-1
	STA	TEKHIT,X	; 3 patsu de shinu !
	RTS

SHAMB:
SUP1:
SBOOTS:
SD1000:
SD2000:
SD3000:
	PROC
	JSR	STTEKY
	LDA	#0FFH
	STA	TEKXH,X
	LDA	TEKKND,X
	SEC
	SBC	#28
	TAY			; Y=0..5
	LDA	:BOONO,Y
	STA	TEKPNO,X	; Pattern number set
	LDA	#0
	STA	TEKCTL,X	; Control & color set
	RTS
:BOONO:
	DB	19,11,16,18,18,18

RN3F20:
	JSR	RANDOM
	AND	#3FH
	ADC	#20H
	RTS

;@@@@@@@@ KOKOKARAHAJIME 04/27 @@@@@@@@@
; 89/04/27 Tsuika
STARU:		;40: Taru
SSHA:		;41: Sharin
SUMA:		;43: Uma !

(Source: evilhamwizard)

Miscellaneous

• In the Japanese version, you must reach the end before the 80 in-game days are up. In the US version, there's no time limit.
• The Japanese version has 8 stages (England, Atlantic Ocean, Arabia, Hong Kong, Pacific Ocean, Alaska, North Pole, and Big Ben). The US version has 7 stages (The West, The Ocean, Arabia, Space Wars, London, Liberty, and New York).
• You can use vehicles in some levels. However, the sailboat from the Japanese version was replaced with a biplane in the US version.