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Prehistoric Isle in 1930

From The Cutting Room Floor
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Title Screen

Prehistoric Isle in 1930

Also known as: Genshi-Tou 1930's (JP)
Developer: SNK
Publisher: SNK
Platform: Arcade (Custom)
Released internationally: December 1989


SourceIcon.png This game has uncompiled source code.
DevMessageIcon.png This game has a hidden developer message.
CopyrightIcon.png This game has hidden developer credits.
RegionIcon.png This game has regional differences.


Prehistoric Isle in 1930 is a shoot 'em up about dinosaurs living on an island chain near the Bahamas during the Great Depression. Mmmhmm.

Programmer Messages

There are three hidden messages and a small piece of uncompiled C code starting at 0x004A8 in the main CPU:

Address Message
0x004A8
Prehistoric Isle Software System. Version 1.12     
0x004D8
PROGRAMMED BY TAKOGUTI KAMEN OOI AND ITSAM MATARCA.
0x0545
THERE IS A WHITE DOG. VERY INTERESTING.            
(SHIROI INU GA IMASHITA. OMOSHIROI.)
0x0591
/* Error /*                                        
error()
{
	printf("ERROR !\n");
}
(Source: Original TCRF research)

Regional Differences

INT USA
Insert coin where? Winners don't drug users

In addition to the standard "Winners Don't Use Drugs" screen, the USA version also adds the same text to the high score and gameplay demo screens, plus another "INSERT COIN" message and helpful arrows.

(Source: Original TCRF research)