"TypeError: Cannot read property 'addEventListener' of null"
In the Java console there seems to be a number of calls this is happening for. "at Object.registerOrRemoveHandler" "at Object.registerMouseEventCallback" "at _emscripten_set_mousedown_callback" and many more.
No save export or cloud save on a game that requires long term play makes the game Unplayable in private/incognito mode or across multiple devices. Now, let's see... what rating is Unplayable...
Thought I'd check back in on in this game since 'tis the season. Looks like the end game has been expanded since I last played, unfortunately the progression is still so ridiculously slow that I'll never get to the added stuff. Gem income/costs are still awful. Hit/click detection for bats/pumpkins/windows/etc. is still awful. Normally this is where I'd bump my rating down, but the fact that it remembered my save and still has that charming design going for it will keep me from doing so.
You shouldn't lose all your tools when you finish a picture. Instead, you should be cranking out pictures with more and more efficiency, which in turn would allow you to progress through the other systems in the game.
Or perhaps the Upgrades should remain when you Move. *Something* to make it feel like you're actually progressing instead of being constantly stuck at the bottom rung.