The Wonderland Board

Sharp Shooter. Gosh, I can usually figure these out, but this space ship is getting on my nerves. I can only get him to blow up 2 of the boxes in row of bottom boxes. Does anyone have any tips at all????

No.
Sorry, but it's a complete timing skillfest with nothing to be hinted at. You probably know how to "pass" that UFO so that no shots are fired, try waiting just a tad bit longer for a shot.