Oh sorry for that. The freshly released version use a recent kind of cartridge which is not supported by all emulators. Its name is UNROM-512 or "mapper 30" if you want to check for support in a particular emulator.
I may choose to use another cartridge (to get better emulator support) in a futur update. Do you want that I let you know when it is the case?
I plan to release new cartridges when the version 2 is ready. I hope that it will be in 2021, but can't promise anything. We are still in very early stages of this version.
I do not plan to produce more cartridges of the version 1.
In the meantime you are free to download the game and put it in an everdrive, or even produce your own cartridge. I know that it is not the same thing as an "official" cartridge, I am sorry for not being able to bring better news.
