Bram Stoker's Dracula (Sega Master System)

Cheat Mode
Press and hold down II as soon as you power up the system. When the music starts playing, press Up, Down, Left, Right, Left, Right, Down, Up. Start a new game and a Cheat Mode screen will appear. You can choose what stage to start on, and if you press II, you'll be granted invincibility. You can still die if the time runs out, however. The screen also shows the game's build date and the name of the programmer, Dominic Wood.