You should have a standard Game Start button. The game does not teach you its controls. There are no volume controls, and you cannot pause the game. The first boss should ease you into learning your character's movement, instead of introducing relatively complex tracking shots from the beginning. The presentation + music are good, but that's about it. The mechanics are boilerplate and actual game design is below par. There needs to be a gradual build up of complexity and difficulty as you go through bosses.