Awesome game maybell! I played it for quite a while. The first time I only made it to level 5, but on the second try I stopped when I got to level 12. The gameplay is great, I really like how the game requires you to change up your strategy depending on the amount of green stuff you have. The bounce effect, skating lines, blood effects and camera acceleration & deceleration are also nice touches of polish.
That being said, the gameplay doesn't change that much from level to level; you just have to kill more enemies. The pausemenu doesn't actually pause the game, which means you loose a life each time you want to pause the game. There is also a bug with the UI, eventually you have so many green bars that they start to overlap the "enemies remaining" amount. Lastly, the mouse cursor is locked within the game window (when not in fullscreen), but I guess that's to prevent clicking on a different window which would result in the game window getting obscured.