Here are some cheats and tips for the game Low G-Man.
Eight lives:
Enter L0BB as a password.
Lives and weapons power-up:
Enter SHOT as a password.
Bonus train (Cyber Express) level:
Enter AMAN as a password.
Bonus hovercraft (Anti-Gravity) level:
Enter NAKA as a password.
View ending sequence:
Enter YES[Heart] as a password.
Expert mode:
Enter TERU for a difficult game or MARU for
an even more challenging game.
Sounds test:
Enter SONG as a password.
Level Password
1-1 JPN1
1-2 386V
2-0 MICH
2-1 M1CH
2-2 3100
2-3 M052
3-0 ELLE
3-1 FLLF
3-2 HV10
3-3 80MB
4-0 ISAC
4-1 SCRD
4-2 LV12
5-0 BILL
5-1a S0N8
5-1b IRIE
5-2 5VLB
5-3 SGJK