The error is "MAPPER TEST FAIL: PRG RAM MISSING! with some other statements related to the above with INES MAPPER
We don't offer support for emulators unfortunately, please reach out to the makers of the emulator. There's also an emulator channel on our Discord, where you can get help. According to discussion there the game should work in FCEUX 2.6.4.
When will the full version be released?
Today at 1 pm CEST :)
