It's amazing that you used HTML and typescript to make this. It's rare to see games made without a game engine in a jam not specifically requiring it. The mechanic is really fun and definitely can get really deep. I don't have many ideas on how to expand the game aside from adding sound and a few animations since I still lack experience in making and playing games like this, but one that I do have is maybe enemies that can change realms ? You probably already have more ideas than me, though. Looking forward to the updated version.