Mechwarrior 3050 (SNES)

Invincibility:
Enable the "Unlimited ammunition" code and each of the five level passwords. Then, enter MKWFLL as a password.

Level Password
1 BMBRMN
2 65C816
3 B1GBND
4 FSPRNG
5 YHWX11

Play as enemy Mech:
Press Down, A, X on the Tiburon screen, and enter XTRM3K as a password.

Unlimited ammunition:
Enter M1R0G3 as a password