Level select:
Enter ROAM01 as a code in campaign mode.

Disable level select:
Enter ROAM00 as a code in campaign mode.

Enable SPM in all levels:
Enter POWER01 as a code in campaign mode.

Disable SPM in all levels:
Enter POWER00 as a code in campaign mode.

Defeating Karr:

When you reach 'Last Knight Standing,' where you have to shut down KARR, use 
the following trick to defeat him easier. After the dialogue between Michael and 
KITT ends and KARR starts coming towards you, immediately turn right. You will 
see a electric box with a poll sticking out of it. Either drive through that or Turbo 
Boost through. This will set off the electric static, like from the previous mission. 
Turn around and wait for KARR to drive through the static. This will damage KARR 
greatly. If timed correctly, you can Turbo Boost over KARR and the static. After 
you turn around, KARR will most likely turn and go back though. Keep doing this 
and you will defeat the Knight Automated Roving Robot will little, if no, damage to 
KITT.

Pro Action Replay Cheats:

(M) 
0E3C7DF2 1853E59E 
EEA25D6E BCA99C80 

Monster Score 
DE7E589A C19E7B82 

Extra Time 
DE7DC492 FE8C1DAF 

Campaign 

Choose Only One 

Start On Lvl 1 
CE7E58AE BCA99B84 

Start On Lvl 2 
CE7E58AE BCA99B85 

Start On Lvl 3 
CE7E58AE BCA99B86 

Start On Lvl 4 
CE7E58AE BCA99B87 

Start On Lvl 5 
CE7E58AE BCA99B88 

Start On Lvl 6 
CE7E58AE BCA99B89 

Start On Lvl 7 
CE7E58AE BCA99B8A 

Start On Lvl 8 
CE7E58AE BCA99B8B 

Start On Lvl 9 
CE7E58AE BCA99B8C