During the game, type 1982GONZO. Then press the following key
 combinations simultaneously:
 
 Code - Result:
 
 SHIFT+V - Trace user
 SHIFT+X - Teleports selected commandos
 CTRL+I - Invincibility
 CTRL+SHIFT+N - Finishes mission
 Shift+F1/F2/F3/F4 - Video mode
 
 Enter these Level codes on the Password screen:
 
 Mission - Code:
 
 2 - 4JJXB  
 3 - ZDD1T  
 4 - RFF1J  
 5 - K4TCG  
 6 - MIR4M  
 7 - 7QVJV  
 8 - K99XC  
 9 - 924BF  
 10 - JSGPW  
 11 - CMODD  
 12 - JGHD3  
 13 - PUUWW  
 14 - WT348  
 15 - 139P0  
 16 - L9IPV  
 17 - 5LIMV  
 18 - YJOJG  
 19 - YFCWJ  
 20 - GDKWT