Should I make my next game horror or adventure-puzzle solving?

For people who don't know, it is going to be a game, unlike my other ones. It will be a 2-D, retro/old-fashioned style game.

If it would be horror, it would look and play something roughly like Faith.
If it was adventure-puzzle solving, it would be roughly like the original link's awakening on the Gameboy.

ALSO, I need to know if it should be in color, or black and white.

Thanks, Mango

P.S. Leave your answer below.