How to play as Jennifer in Splatterhouse

I tried to make this like a Nintendo Power article. For that old-school feel

Have you ever wondered how you never saw Jennifer as an actual character and instead just a plain boss fight! Well a person named W.A Huers from Fuldigen, HA have discovered a way to unlock her in the Turbo-Grafix version of the game.

First of all you must complete the game on hard made along with not losing ANY health. Repeat 3 times and enter the code "UP UP, DOWN, UP, RIGHT LEFT, LEFT RIGHT, UP DOWN, DOWN UP 1, 1, 2, 2, 1, 2" and then the girl is yours!