Use the arrow keys to change the direction of the shield. Block the red arrow with your blue shield to deflect it! The more you reflect it in a row, the faster the arrow gets, and plus, your score multiplier goes up! With enough hits, you can get four times more points with each hit! Be careful though, if the red arrow hits your green heart, the multiplier will go back to 1, the red arrow will become slow again, and you will lose a point.
I was just scrolling through this random person's profile and found this thing lying around in his projects. I thought "this could use a little fixing!" and I fixed it. No offense to the original creator, though. Update 1: Fixed a bug where the score multiplier didn't multiply correctly Update 2: Fixed a bug where a reflection on the shield did not register as a point and changed the starting direction of the spear's trajectory