Level select:
Enter Y*31 21 3191 11 as a password. Press Left or Right on controller two when the level 1 name appears to select a new starting level.

Level	Password
1-2	1996 14 BBBB 61
2-2	1998 14 BBBB 81
3-2	199B 14 BBBB 17
4-2	199Y 14 BBBB 14
5-2	1991 14 BBBB 66
6-2	1993 14 BBBB 64

Invincibility:
Enter one of the following passwords to begin game play at the corresponding level with invincibility.

Level	Password
1-1	1995 14 BBBB 51
3-1	199! 14 BBBB 18
5-1	199* 14 BBBB 89
6-1	1992 14 BBBB 21
6-2	1993 14 BBBB 64

Control credits:
Hold Select while the credits appear to spin the strongman Boss.