Start the game in Normal mode and enter the Status screen. Once in the status screen, hold Left on Controller 2 and press Right + Select on Controller 1. If done right, you'll arrive at a screen with a portrait for Kunio and Riki while the Double Dragon theme plays in the background.
To find Merlin's Mystery Shop go to the Armstrong Thru-Way. Once inside press up at the top wall and the wall will open. Inside you can buy the best items in the game.
