This episode is quite hard if you ask me.
Yep, this episodes fights are pretty tough. Reala's HP is really high, and you don't have to fight the Rock Beast but if you do it might actually have you die one or two times. It's still a good episode, though. I like it and the battle style's pretty cool even though it's hard, too. I like the music at the menu also.
BTW, you probably won't want to fight the Rock Beast, but you can if you're just bored of the Reala battle. Challenging and fun, it's a 10 from me.