Dragon's Lair

Passwords.

Passwords
After the two snake bosses: 2D, 4C, 6A, 8B
After the large bat: 1B, 2D, 7A, 8C
After the Grim Reaper: 3D, 4B, 5C, 6A
The Dragon's Lair: 1A, 3B, 5C, 6D