The following are known Action Replay Codes for Dave Mirra Freestyle BMX 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 time
EA04168F
C0700FA1
EA07168F
00000BAB

Hyper mode
8003E164 0001
8003E166 2404
8003E172 2800

Unlock cheat menu
300B5C00 00FF

Have a Massive Score
01ff3ec8
01ff3fc8

Turn code on to freeze time
01631EC8