Enter R Testers ROCK (case-sensitive) as a name. Alternatively, enter the 
following code at the level selection screen. Hold R + U for one second. Hold N 
+ O for one second. Press T two times. Press W + I for one second. Press T + H 
for one second. Press X + I for one second. Press Z + O for one second. Press R 
+ S for one second. 

View Ending Sequence
Enter a [Space] character followed by Credits (case-sensitive) as a name, then 
begin game play on the Hoth level. 

In-Game Map
Hold [Crouch] for approximately fifteen seconds while playing on foot. 

Shield
Hold C for approximately five seconds while playing on foot. 

Fly Other Ships
Hold C for approximately five seconds while flying the Outrider during the 
Skyhook Battle level to fly an X-wing. Hold C for approximately five seconds 
again to fly a TIE fighter. Hold C for approximately five seconds again to 
return to the Outrider. 

Max Cameo
Leave Mos Eisley and enter the Dune Sea, then make a ninety degree left turn. 
Keep moving forward to reach a small square with Max from the LucasArts 
game "Sam And Max Hit The Road".