The following are known Action Replay Codes for Sonic Adventure on SEGA Dreamcast (Dreamcast). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark

Infinite Lives
AED34AD4
00000004

Timer always set to 00:00:01
D0C0989A
00000000

Always have 999 gold rings
FE198DC3
000003E7

Turn on Debug mode
77F5C847
00000000

These codes have been collected from around the web and all credit goes to the original poster of the code. Notes associated with any code may be written by the original code creator. Some notes have been added or modified from their original source.

Do you know any additional codes for this game? Is there an error listed above? Let us know about it and we’ll update the list.

Code Indexes for SEGA Dreamcast

• Action Replay Code Index
• CodeBreaker Code Index
• GameShark Code Index

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Other Content for Sonic Adventure

• Sonic Adventure Game Index
• Action Replay Codes [JP]
• Action Replay Codes [US]