Very good potential. you should probably have a defined path for enemies so player knows where to place towers according to their strategy. more maps as well, maybe a story line.
Also, what is with the character movement? I think the game would play better if the character stood still and rotated, instead of being a cm from the middle like it is.
The area around enemies that kills you is to big, should try to make it only a little bit bigger than the enemy, so its about stabbing-range size. Also, when you try to shoot more than one projectile the first one disappears, should try to limit this to 3 at a time or make it so you can't shoot again until the first projectile is off screen. And when I move the character around the enemies would glitch and swap to opposite sides. I couldn't get much farther than the first few seconds.
wow... you do not know how many games are popping up on the new games list with the same exact character and enemies. i mean it's a stencyl tutorial, the least you could do is add your own creativity to it. 1/5
 "40xEscape"){kind=icon}
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