Excitebike: Excitebike NROM to MMC3 Hack 
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Here is a patch that converts Excitebike's mapper from NROM to MMC3. Documentation is included.
11/26/13
infidelity
Converting Excitebike NROM to MMC3
This rom just needs a simple mapper change within the header. This game only uses $C000-$FFFF, there is no $8000-$BFFF. Don't need to setup anything.
UPDATE 12/2/13
Does not display correctly on PowerPak.
Need to increase PRG-ROM by 1, so that it can have $8000-$BFFF to contain the MMC3 setup registers, this has to be installed.
$41CE = 200080
$10 = A900 8D0080 8D0180 8D00A0 8D01A0 8D00C0 8D01C0 8D00E0 A205 8E0080 BD2980 8D0180 CA 10F4 ADCE05 60 00 02 04 05 06 07
DONE! Excitebike is now MMC3! :-D
-infidelity
Excitebike (Japan, USA).nes - NOINTRO
CRC32: 2BB33C69
MD5: D7FE15CF2BC7B6582C07D12B3CF3BEDE
SHA-1: 2E9897846E54A4A9865E87DE7517C6710BDEC255
SHA-256: 372654D4C62D214D92200288611FF176AE1727949C6F012E2FC95BF2452A33D7
11/26/13
infidelity
Converting Excitebike NROM to MMC3
This rom just needs a simple mapper change within the header. This game only uses $C000-$FFFF, there is no $8000-$BFFF. Don't need to setup anything.
UPDATE 12/2/13
Does not display correctly on PowerPak.
Need to increase PRG-ROM by 1, so that it can have $8000-$BFFF to contain the MMC3 setup registers, this has to be installed.
$41CE = 200080
$10 = A900 8D0080 8D0180 8D00A0 8D01A0 8D00C0 8D01C0 8D00E0 A205 8E0080 BD2980 8D0180 CA 10F4 ADCE05 60 00 02 04 05 06 07
DONE! Excitebike is now MMC3! :-D
-infidelity
Excitebike (Japan, USA).nes - NOINTRO
CRC32: 2BB33C69
MD5: D7FE15CF2BC7B6582C07D12B3CF3BEDE
SHA-1: 2E9897846E54A4A9865E87DE7517C6710BDEC255
SHA-256: 372654D4C62D214D92200288611FF176AE1727949C6F012E2FC95BF2452A33D7
NES Emulator Required
Time to Beat
Main Story 0h 45m
Main + Extras 2h 0m
ttb_all 0h 50m
Release Date
Dec 3, 2013
10 years ago
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