Meloo . thanks for making a game! Were I to make a couple suggestions, it would be that the attack delay makes it difficult to time your strikes. Unless this is an important mechanic and will be explained in a certain way, it might be an unnecessary obstacle for players.
Second, there are occasionally columns which initially look like walls which might block the player's path -- maybe the graphics could be changed by subduing or shadowing the background elements so they're clearly not gameplay elements.
I look forward to seeing how this develops, and I hope you can raise the capital for your license(s)!