Joe & Mac (SNES)
|Joe & Mac|
Also known as: Joe & Mac: Tatakae Genshijin (JP), Joe & Mac: Caveman Ninja (EU)
This game has a notes page
Joe & Mac is an SNES port of the arcade game where some cavemen fight dinosaurs using really nifty weapons.
Debug Mode $01
This first debug mode sets all stages to cleared, all locks opened, red eggs are always available, and enemy collision is disabled. Use Pro Action Replay (PAR) code 7E005F01 or Game Genie codes DF6A-D40D + 3CE1-A704 + 3CE1-A764 to enable it.
Debug Mode $02
In this debug mode, Joe and Mac start a new game with 39 lives and 9 keys each, and all red stages are cleared. Unlike the first debug mode, the blue stages (which can only be played once) are still accessible.
To enable it, on bootup enter Pro Action Replay (PAR) code 00FB3200 or Game Genie code DDE7-AD64. Next, enter the sound test. Set A to 78, B to 79, X to 73, and press Select to exit.
The secret combination suggests it was once intended to be a player accessible cheat, but in the final version the game skips over the programming that grants the bonuses. A fragment from a prototype build contains a copy of the programming before the debug mode was disabled.
This sound test is available in the Japanese and North American versions, but not the European version.
On the title screen, move the cursor to Option. On controller 2, hold Right and L. On controller 1, hold Left and R, then press Start.
Use the D-Pad to change the index values (the exact purpose of each setting is not yet clear). Press Start to transfer sound data? The A / B / X / Y buttons are used for playing songs and sound effects. Press Select to exit the sound test.
Also worth mentioning, the text string SOUND TEST located at SNES address $02E058 (NA version) or $02E056 (JP version) is loaded but doesn't appear on-screen.
Unused Sound Test Entry Point
Located at SNES address $02D025 is the pointer #$DD7F (NA version) or #$DD7D (JP version), which also leads to the sound test. There is no programming that loads index #$08 and jumps to $02D000 (hex pattern A9 08 22 00 D0 02). This was likely a developer shortcut to access the sound test menu.
Alternative Ending Sequence
When the credits scroll pauses on "SOUND CREATOR ATOMIC HANADA" as pictured in the screenshot above, the game checks if X + A + L + R are held. If true, the game shows an alternative ending sequence of Joe and Mac being chased away by 4 ugly women:
To skip instantly to the ending after the Data East logo in the NA version, use Pro Action Replay (PAR) code 00FB0707 or Game Genie code D5ED-AFA4.
These icons (or versions thereof) can be found in the game's graphics shortly after where the ones used in the final are stored.
Due to the very subtle differences, the following icons include the finals (left) for comparison purposes.
Unknown Controller Check
Located at SNES address $08C609-08C614 (NA and JP versions) is two checks for the controller 1 R button being pressed or held while playing a level. However, the following branches have a distance of zero, meaning the alternative code paths were deleted.
$08/C609 A5 54 LDA $54 [$00:0054] $08/C60B 89 10 BIT #$10 $08/C60D F0 00 BEQ $00 [$C60F] $08/C60F A5 50 LDA $50 [$00:0050] $08/C611 89 10 BIT #$10 $08/C613 F0 00 BEQ $00 [$C615]
The L or R button depending on where Joe or Mac is facing, usually makes them run.
In the two-player mode of the Japanese version, a player that has lost all their lives can steal one from the other player to continue (indicated by "PUSH BUTTON" in the HUD). This feature was removed from the international versions.
The HUD was also moved down one tile in the international versions.
The Joe & Mac series
|NES||Joe & Mac|
|SNES||Joe & Mac • Congo's Caper|
|Genesis||Joe & Mac|