Thanks for your comment <3
Like you said, I need some more time to create a good demo. At the moment you can only move and change heroes, but I have plans to add the possibility to upgrade a ‘big hero’ by a ‘small hero’ and add different types of attacks depending on the upgrades. Also some kind of introduction/tutorial would be useful, then for sure the demo would be more interesting. I've added more information in the description, as if you'd like to see my perspective on the vision of the game.