Final Fantasy Legend II

You climb another tower searching for your father while beating up people for ancient relics. This is not a direct sequel to The Final Fantasy Legend but does expand the first game's mechanics while improving upon them and fixing some bugs.

Sound Test
Hold Select, Start and B while on the title screen to access the Sound Test. A bug occurs where the save-counter value from the loading screen is carried over if you happen to go there first, possibly leading to overflow and illegal values for the Sound Effect option.