Lufia: The Ruins of Lore (Game Boy Advance)

Lufia: The Ruins of Lore is a follow-up on the events after Lufia II: Rise of the Sinistrals. The game takes place 25 years later, in the town of Parcelyte.

Debug Menus
This game, like Lufia II, has a handful of debug functions, all of which are in Japanese, with the exception of most character and item names. There are two main menus: a map, character, and inventory editor menu, and a menu that might have been used by the developers for bugtesting.

First Menu
The first menu is the one with the editors. It is activated with Codebreaker codes in the US version, and  in the Japanese version.

Second Menu
The other menu is believed to be a set of tools used by the developers for bugtesting. Accessible with the Codebreaker codes, it includes a battle selector (choose a background and an enemy set, then press A to start a battle), a sprite viewer and sound test, 3 area changing tools (one with all areas and no events completed, 1 with all areas and all events completed, and 1 with currently unlocked areas and currently completed events), a cinematic viewer (buggy), another teleporter and debug shops. This one also won't easily let you exit it without bugging up the game. If you use the 3rd area changer, however, you can leave the menu without bugs.

Unused Sprites
There are various unused sprites, most notably Dekar's swimming and sleeping sprites. Since the player cannot switch to Dekar, and there are no cutscenes where Dekar is asleep, none of these are used.

Unused Items
Two items called "Aspirin" and "Goddess Statue" (items 359 and 360 in the Inventory Editor, respectively) are in the game's memory. "Goddess Statue" is a battle-only item with no apparent use, while Aspirin cannot be used at all. These items may possibly be related to events that were never implemented.