This is your best game yet I really enjoy the game, and I barely ever find internet games interesting, but this was one of the most top-notch internet games.
The menu has a sleek design, very nice and simple to understand, the button sounds weren't over used nor loud and obnoxious it instead sounded fitting to the aesthetics. I liked the nice touch you added for when switching to a new option.
The animations in the game looked very well made and made it more entertaining to play (for instance the explosion animations).
The game itself was an interesting but basic idea, a very comfortable game. The waves of enemies were also fun, the impact of the shots really felt like you were hitting them, the sound effects were a good effect. The background was also nice to look at.
Putting different coloured enemies and having to hit keys to switch the colour of the cannon in order to kill the enemy was very challenging making it more fun.
This game was actually entertaining, the control movements were nice and smooth, very comfortable shooting also.
You hit the nail on the head on this one well done, 8.5/10.