Its good, but again, its just a demo. A suggestion I would like to make is either respawn invulnerability or a forced respawn location in the middle. This is because while fighting the boss, the part where he attacks from behind he can end up killing you multiple times before you even have a chance of moving away due to the fact that you respawn where you died- right where the boss has located itself. Other than that the mechanics of the game seem fine and make a decent demo. I would like to see where you take the gameplay, whether it be the type of game where the player levels up or not, whether it has shifting gameplay, or if it has a major plot. I also look forward to how you deal with future graphics such as leaving the game as a mostly colorless experience or if you are going to add some kind of coloring to add to the personality that is already present. Overall, this is pretty good for a demo. 4/5 stars, and I look forward to seeing this evolve into a full game.