Jewel Master

Jewel Master
Developer: Amusement Publisher: Sega Platform: Genesis Released in JP: August 30, 1991 Released in US: August 29, 1991 Released in EU: 1991 Released in AU: 1991 This game has unused areas. This game has unused text. This game has a hidden level select.

Jewel Master is a somewhat Castlevania-esque action game whose gimmick involves collecting elemental rings, which can be freely mixed and matched to create different abilities.

Hidden Area

In the forest area of Stage 1, there are four hidden platforms in the trees which can be reached by double jumping. They lead up to a small, seemingly pointless ruin platform with three statues.

However, you don't gain the ability to double jump until you obtain the Level 3 Wind Ring in Stage 4, making this area normally inaccessible. Using the Game Genie code A3ZT-AA8A (US version) allows you to jump infinitely, allowing you to reach it.

Round Select

Enable Game Genie code CAMT-AAFJ to access a round select when starting the game. On the Japanese ROM, booting with patch code 0003AC:0010 will have the same effect.

This needs some investigation. Discuss ideas and findings on the talk page. Specifically: Is there a button code? I disassembled as much code as I could find and found no reference to writing $10 to screen mode variable $FFFE04...

(Source: Tony H (Game Genie code))

Unused Text

The text Scene at address $001F26 is stored among the options text, but isn't displayed on the options screen. It would've been located between the Sound Test and Exit selections: