The Flintstones (Game Boy)

The game based on the movie based on the cartoon based on the prehistoric age.

Stage Select#

Enter the options menu, now select the "FX TEST" option and play the sounds: 25, 01, 02, 02, 01, 04, 01, 02, 02, 01, 04, 15. Now play any sound one more time to enable the cheat. Return to the title screen, the message "CHEAT ON!" will appear at the upper-right corner of the screen. Now choose the "START" option. The level/mini game select screen will appear. You can select and play any mini-game, watch the ending sequence, other game sequences and play from any act as well. During the game, Select may also be pressed to skip the level.

Interestingly, if one converts the numbers of the sounds needed to be played to their corresponding letter (e.g. 01 = A, 02 = B, etc.), it spells out "YABBA DABBA DO", Fred's catchphrase.