[artemavv]

It was not clear how to regulate the power of the hit until I've opened "Help". Maybe add some text under game field, "hold mouse button to set the power"?

Overall, nice little game, good work!

[gus_massa]

I agree. I don't understand why the line is rotating. Once I put the mouse over the light circle it get's aligned in that direction.

Also, the "Restart" button should change into "New Game" after I win.