The Flintstones: The Treasure of Sierra Madrock

The Flintstones: The Treasure of Sierra Madrock is yet another in a series of corny rock-themed puns.

Cheat mode
Using the PAR code (US version) enables a debug/cheat mode of sorts. Each section below assumes that this mode is active.

Options menu
When the "press start button" text appears, hold down L + R and press Up, X, Down, B, Left, Y, Right,  and A. A sound will play to confirm you've entered the code correctly. Now the options menu is expanded with several new options.

Ingame buttons
During the game, press any of the following on controller 2:
 * A: enters/exits the current space without ending your turn
 * B: automatically takes you to the area or stage (if you're already at stage 5, you'll just end up at stage 5 again)
 * R: start the race against Rockhead
 * Start: toggles unlimited time (regular stages only)

Pause buttons
Also, there are 3 button sequences for controller 1 which can be activated while the game is paused (they must be done in this order). The currently playing song/sound will change to indicate that the code was input successfully.
 * Hold Down, hold Right, release Down, press A: unlimited time, 99 lives, 100 clams, maximum hearts
 * Press Right, hold Down, hold Right, press A: temporary invincibility
 * Hold Down, hold Left, release Down, press B: effect unknown
 * also sets bit of  (effect unknown)

Debug display
When bit of  is set, this display appears on the map screen, showing the values of the eight 16-bit words between  and. What each one represents is unknown, though the first one always seems to be set to when leaving a stage.

There is no apparent way to enable this feature without manually editing RAM.