i just tried that same game in another submission called GRB.NES
Viewing post in Andover jam comments
Unfortunately, we both named our games “game.nes” and EmulatorJs just caches the first one. You can play my game in private / incognito mode to clear the cache. I wish I could reupload the game under a different file name, but the jam prevents me from doing that.
Also, you can download the ROM and play in an actual emulator if you want.