Well done! The music was quite good and the graphics also aren't bad. And the dash-crash attack was nice! I only know about one big problem - the controls. Firstly, moving forwards and backwards by Up and Down arrows and rotating by Left and Right is everything but intuitive. People (including me) are used to moving to the left and to the right by Left and Right arrows. Secondly, it's weird that the cannon shoots to the sides. It's usual for the cannon to shoot forward, it was difficult to get used to shooting to the sides. Next time, make the controls intuitive and don't try innovations. Except for the controls, the game is awesome!