very clever!
Very clever game on the coding part, but why dont you try to make it more proffesional, like making spiked balls instead of a man to guard the goal. Also try to brush up on the menu as well, make it look fancier.
And, for the third time in 10 mins on different games, run the text through a translator, so its easier to understand.
idea 4/5
looks 2/5
coding 5/5