Of course, I use Windows and the Firefox browser, I could try out some things for you to see if the issue still persists if I for example use a different browser? :)
I think definitely that plays a big role in the difficulty, but I feel you on bugs when it comes to gamejams, it's so little time to actually properly iron everything out. And I do definitely see that inspiration, also old games were notoriously hard, so in that way you are actually very accurate hahah!
And you're welcome :) lmk if I can help with any testing