The main problem with the flash vector renderer is that it has performance issues when displaying a large number of objects at the same time, a problem that simply doesn’t exist when using blitting (see this awesome example). Another problem is that it has trouble with the 2d free-scrolling background, making it move in jumps at times which gives the impression that the game isn’t running smoothly. Perhaps I will be able to fix this with blitting by applying a slight motion blur effect to the background.

Update wise, I will be upping a new version soon with better balance and couple other smaller changes. I think most people haven’t even seen all the enemy types yet, because waves 5 and 6 are way too hard. I will also set up a survey so people can give me their take on the prototype and make suggestions.

Until then you can still play the original prototype here.