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Anybody made a MMC-3 mapper hacked version of this game on TSROM board? I tried but it wasnt working. Used this to go by:
TKROM & TSROM (mapper 4):
PRG socket: Bend up pins 1, 2, 24, 30 and 31 (or cut tracks 2, 24, 30 and 31)
Solder pin 2 to hole 24 (A16)
Solder pin 24 to GND (OE)
Solder pin 30 to hole 1 (A17)
Solder pin 31 to hole 2 (A18)
CHR socket: Bend up pins 1, 2, 22, 24, 30, 31 (or cut tracks 2, 22, 24 and 30)
Solder pin 2 to hole 24 (A16)
Solder pin 22 to hole 31 (CE or CHR /A13)
Solder pin 24 to hole 2 (OE or CHR /RD)
Solder pin 30 to hole 1 (A17)

Is this right or am i missing something? Im using a waldo cart.

I'd suggest you try a known working MMC3 game on the board. Make a board with sockets for testing. Once you have it working, test the roms you have for the target game. After the ROMs are working, make another board into the cart you want.

Ok will try that.

Finally got Kid Niki 3 fixed and working:

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Cool, I always loved the Kid Niki games