What makes this pattern very difficult is the very top line that completes Pacman's head. It is supposed to be five lines wide, and it has to be left by itself with no other pieces/holes around it. And what makes THAT hard to do is that you would have to clear two strategic lines that create the five piece line with that sitting on top of a stack that could be perfectly cleared to leave only the five line piece remaining. A combination of not a lot of space to work up top, and level speed increasing make this pretty challenging.
I got everything but the last line in the pattern completed a little after 7 minutes but struggled on the last line to the point that I gave up on this try.