This game has debugging material.
Explain further on how to access and use the debugging monitor.
Olivia's Mystery is a relatively low-key moving image puzzle game. It's also one of the few games that even bothers with the high resolution mode, albeit mainly on the title screen.
As with a handful of other SNES games, like GT Racing and Touge Densetsu: Saisoku Battle, a machine code monitor is programmed into the game. To use it, connect using a 9600 baud serial connection between the Super Famicom and a terminal with Shift-JIS Japanese character support.