It's a fun and original game and even tho the graphics are simple, it looks great. I just have two issues/suggestions:
-The character doesn't look at the cursor at all time, for some reason there's an offset that makes it pretty hard to aim, about 45 degrees from the cursor I think.
-It's a pretty cool idea to rewind time a little by shooting even if u don't hold the mouse button but the screen effect showing up each time you shoot made me feel a little dizzy, maybe have the screen effect come up only if u hold the button for a second or two instead of as soon as you click.
Keep up the good work :->