Up'n Down (Arcade)
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Developer: Sega
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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.
Cleanup > Pages missing date references
Cleanup > Pages missing developer references
Cleanup > Pages missing publisher references
Games > Games by content > Games with hidden developer credits
Games > Games by content > Games with hidden developer messages
Games > Games by developer > Games developed by Sega
Games > Games by platform > Arcade games
Games > Games by publisher > Games published by Sega
Games > Games by release date > Games released in 1983
