Obi-Wan noted the blaster bolt coming at him from the side at the very last second, and turned his lightsaber down and under, deflecting the bolt right into the acklay's face.

The creature hardly slowed and the Jedi had to throw himself to the ground to dodge a swiping, snapping claw.

He rolled out to the side, to avoid a stomping leg, and managed to slash out again, cutting a deep gash.

The acklay howled and came on, and more blaster bolts came at the Jedi. His lightsaber worked furiously, brilliantly, turning one bolt after another right into the charging beast, finally slowing it and stunning it.

Obi-Wan rushed in and leapt and stabbed, right in the face. He caught his foot on the creature's shoulder and ran right past it. He heard it fall behind him, thrashing in its death throes, but he knew that battle was done and went back to work on the battle droids.

R.A. Salvatore, Star Wars: Episode II – Attack of the Clones