♬ Sega is going Up'n Down ♬
♫ Sega is capturing flags♫
♬ Sega jumps on enemies ♬
♫ Oh no, I fell into a hole ♫
MY CAR DISINTEGRATED INTO PIECES
Developer Credit/Build Date#
Present on the chip labelled/in MAME file epr5516a.129, at offset 0xA while the ROM is still encrypted:
19/SEP 1983 MASATOSHI,MIZUNAGA
The message is not present in RAM, as it gets decrypted into garbage. Masatoshi Mizunaga (despite the comma there is only one name here) is discussed below.
Hidden Message#
Present on the chip labelled/in MAME file epr-5519.132, at 0x210, while the ROM is still encrypted:
SECURITY BY MASATOSHI MIZUNAGA
SECURITY BY MASATOSHI MIZUNAGA
SECURITY BY MASATOSHI MIZUNAGA
SECURITY BY MASATOSHI MIZUNAGA
SECURITY BY MASATOSHI MIZUNAGA
SECURITY BY MASATOSHI MIZUNAGA
SECURITY BY MASATOSHI MIZUNAGA
SECURITY BY MASA
GAME NAME BY UP'N DOWN
GAME NAME BY UP'N DOWN
GAME NAME BY UP'N DOWN
GAME NAME BY UP'N DOWN
SEGA ENTERPRISES JAPAN
SEGA ENTERPRISES JAPAN
SEGA ENTERPRISES JAPAN
SEGA ENTERPRISES JAPAN
SEGA ENTERPRISES JAP
[[[[ DONT COPY !!!!!! ]]]]]
[[[[ DONT COPY !!!!!! ]]]]]
[[[[ DONT COPY !!!!!! ]]]]]
[[[[ DONT COPY !!!!!! ]]]]]
[[[[ DONT COPY !!!!!! ]]]]]
[[[[ DONT COPY !!!!!! ]]]]]
[[[[ DONT COPY !!!!!! ]]]]]
[[[[ DONT COPY !!!!!! ]]]]]
[[[[ DONT COPY !!!!!!
UP BY 13 SEPTEMBER 1983
UP BY 13 SEPTEMBER 1983
UP BY 13 SEPTEMBER 1983
UP BY 13 SEPTEMBER 1983
UP BY 13 SEPTEMBER 1983
UP BY 13 SEPTEMBER 1983
UP BY 13 SEPTEMBER 1983
UP BY 13 SEPTEMBER 1983
UP BY 13 SEPTEMBER 1983
UP BY 13 SEP
yasymi ni shigoto o sasuna !!??
yasymi ni shigoto o sasuna !!??
yasymi ni shigoto o sasuna !!??
yasymi ni shigoto o sasuna !!??
yasymi ni shigoto o sasuna !!??
yasymi ni shigoto o sasuna !!??
yasymi ni shigoto o sasuna !!??
yasymi ni shigoto o sasuna !!??
yasymi n
yasumi ga hoshii !! yasumuzo !!
yasumi ga hoshii !! yasumuzo !!
yasumi ga hoshii !! yasumuzo !!
yasumi ga hoshii !! yasumuzo !!
yasumi ga hoshii !! yasumuzo !!
yasumi ga hoshii !! yasumuzo !!
yasumi ga hoshii !! yasumuzo !!
yasumi ga hoshii !! yasumuzo !!
The message shown has been reformatted for clarity. In the ROM, it is a continuous byte stream with spaces to pad at uneven lengths and which ends with a single space to pad to an even 16 bytes. Parts of the message that are cut off at the end are cut off in the original; there seems to be no pattern, and Mizunaga may have used an automated tool to insert the message. There does not seem to be consistent line length between each part.
The Japanese translates to:
Don't make me work on a holiday!!??
Don't make me work on a holiday!!??
Don't make me work on a holiday!!??
Don't make me work on a holiday!!??
Don't make me work on a holiday!!??
Don't make me work on a holiday!!??
Don't make me work on a holiday!!??
I want a holiday!! I'm taking time off!!
I want a holiday!! I'm taking time off!!
I want a holiday!! I'm taking time off!!
I want a holiday!! I'm taking time off!!
I want a holiday!! I'm taking time off!!
I want a holiday!! I'm taking time off!!
I want a holiday!! I'm taking time off!!
Masatoshi Mizunaga was a programmer at Sega of Japan who worked on all the games the company produced internally, which it seemed to have started doing in 1982; it appears he grew weary by this point, especially since he was the only one who worked on every game, typically doing either programming or copy protection...or for some games, both.
(Translation: GlitterBerri)