Been exploring for half an hour now, it's really fun seeing how far can some people go with base YN tilesets. I've found a few secret maps (warps hidden behind things), thanks for such an incredible fangame!
There's a bit of space for improvement on interactions with NPCs and collection of effects in one world, but the basics are there and they're incredibly well done!
EDIT: Managed to create an account successfully and made two maps! :)