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Pyramids of Ra

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Title Screen

Pyramids of Ra

Developers: Source, Micros
Publisher: Matchbox
Platform: Game Boy
Released in US: April 1993

CopyrightIcon.png This game has hidden developer credits.
DevTextIcon.png This game has hidden development-related text.
GraphicsIcon.png This game has unused graphics.

Unused Introductions / Game objects

There are some "INTRODUCING" screens before the game starts showing basic game mechanics and used objects. There are regular objects like "1/2/3 BOUNCE TILE" and "MOVING TILE".

However, there are two unused and unreferenced leftovers for two additional "INTRODUCING" screens with rather completely unused objects: "2/3 MOVING BOUNCE TILE". The only "MOVING TILE" in the game does not limit the number of bounces. Note, the moving platforms use the same color gradations as regular "2/3 BOUNCE TILES" and disappear after used.

Pyramids of Ra (GB) 2bounce text.pngPyramids of Ra (GB) 2bounce demo.png

Pyramids of Ra (GB) 3bounce text.pngPyramids of Ra (GB) 3bounce demo.png

Not only both unused objects are fully programmed, but also corresponding demo sequences are present in data. Use either Game Genie code 2D2-DAF-4CB + 4B2-DBF-80F or 032-DAF-4CB + 4C2-DBF-80F to replace very first "INTRODUCING" screen with one of the unused accordingly.

Unused Graphics

Some tiles in the tile set aren't used in the game.

Pyramids of Ra (GB) chr unused.png

Also, at 0x006C3C in the ROM there is an unused portion of a tile set with early versions of some in-game tiles. It's also worth noting that all CHR tiles in this game are in NES format, which makes sense as this game is based on the unreleased NES game, Scarabeus.

Early Used
Pyramids of Ra (GB) chr older.png Pyramids of Ra (GB) chr used.png

Hidden Credit

Present at the beginning of the ROM.


Development Related Text

Starting at 0x76C:

  19  29   39   --   --  (11)
ADD IX,    DD09 DD19 --  DD39 DD29  --  (15)
ADD IY,    FD09 FD19 --  FD39  --  FD29 (15)
0     0 =   0
0     1 =   0
1     0 =   0
1     1 =   1
CZVSNH     Flags
           A  B  C  D  E  H  L (HL) nn  (IX+d) (IY+d)
AND A,     A7 A0 A1 A2 A3 A4 A5 A6 E6nn DDA6dd FDA6dd
           +---------4--------+ +--7--+