the cutting room mirror

NA-2 System

The Namco NA-1/NA-2 System is a 16-bit arcade platform developed by Namco, used in around eleven games throughout the early-to-mid-90s. The exact differences between the NA-1 and NA-2, outside of different MCU code, are uncertain.

Developer Text#

Present on the C69 (NA-1) and C70 (NA-2) ROMs at 0x0 is this text, detailing the build date and version.

C69

C70

NSA-BIOS ver1.21
namco all right 
reserved 92/3/8 
NSA-BIOS ver1.31
namco all right 
reserved 92/9/18

Developer Credits#

Present at 0x3800 in both versions are these credits and an anti-piracy warning:

================
M37702 BIOS     
CREDITS....     
Programmers:    
 main - Komoda  
 sound- Ogawa   
 I/O  - Yamada  
Tests:          
   Wachi        
   Yamazaki     
                
NSA-1 board     
CREDITS....     
Board Design:   
   Inoue makoto 
Chip Design:    
   Inoue mokoto 
   Ogawa tohru  
   Yamashita SKI
Board Supervise:
   Yamashita SKI
   Aoki new face
                
1992/ 03/ 06    
     16:00'00
++++++++++++++++
I hate Pirates!!
No Copy this ROM
================