It has been noted before that Five Kids runs glitchy both on the 120-in-1 multicart as well as in the
downloadable WXN stand-alone version. The reason for the glitches is that both versions write to VT02-only bankswitch registers in their IRQ handler. The effect of these bankswitch writes can be replicated by writing to the appropriate MMC3 bankswitch registers. Such a thing can be either done by the emulator, or by modifying the ROM image itself.
Attached find my modification of the WXN version, which now runs well in all emulators that I have tried. (I have not played past the first level.) If somebody else has already made a similiar patch, then I have not found it.
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