TITLE! WOOOOOOO!
for those of you struggling with this: just use the saber to block at all times and study the enemy's attack pattern, then strike when they are vulnerable (after an attack). If you have trouble blocking, just move the cursor to where you want to set up a good block and hold down the block button.
Myself, i thought it was easy after i had some practice, and i came to be able to easily beat anyone without being hit once on 8th difficulty flashsaber. Don't even get me started on lightsaber.