The following are known Action Replay Codes for Need for Speed Underground 2 on Nintendo Game Boy Advance (GBA).
These codes were also known as GameShark Codes and in most cases will work on both devices.
These codes are for the U.S. version of the game.
Master Code – Must Be On...
action
action replay
action replay codes
codes
gameshark codes
gba
infinite nitrous
infinite purchase points
low time
master code
needforspeedunderground2
nintendo game boy advance
open cars owned
open cars/parts
open races
replay
replay codes
speedunderground
us
The following are known Action Replay Codes for Need for Speed Underground 2 on Nintendo DS (NDS).
Game ID: AUGE-0C567405
Press SELECT+R for Upgrade Points
94000130 fefb0000
2218bd36 000000c8
d2000000 00000000
Press SELECT: All Cars Unlocked
94000130 fffb0000...
action
action replay
action replay codes
all cars owned
all cars unlocked
codes
engine tuning
mini game codes
nds
needforspeedunderground2
nintendo ds
parts/accessories unlocked
reduce heat
replay
replay codes
speed
super score gain
underground
upgrade points
us