Which emulator it runs in doesn't matter; it's about the hardware configuration of the ROM itself. It looks like NES Puzzle Maker using NROM, which is allowed in the competition!
Here are some rules specific to NROM to make it compatible with the Multi-Cart that we release at the end of this:
- NROM-128: Be careful not to write to $8000-$FFFF. Test with a breakpoint on writes to ROM.
- NROM, CNROM: Be careful not to overwrite CHR ROM. Test with a breakpoint on writes to PPU $0000-$1FFF.
- NROM, CNROM, ANROM, BNROM: $FFD0-$FFF9 of each 32K PRG ROM bank must be unused.
You will need to reach out to the NES Puzzle Maker creator (https://twitter.com/cppchriscpp) as see it the tool breaks any of those rules. It will not be an issue for entering the competition, but it will only be an issue with getting your game on the "Action 53"-style multi-cart (if we ever get one put out).
Good luck!