There definately IS skill involved. Even though a lot of the early CV games are memorization, remembering what enemies attack and when/how, etc, you still have to have the reflexes and character-positioning ability to combat them. Those things DO take skill.
It took me forever to beat CV1 and CV3. Truth be told, I had beaten MANY other CV games before those two. Memorization and rhythm are one thing, but it does take some skill to master them. Even though the early CV's are the KINGS of controller-whipping tantrums, keep playing...practice makes perfect as they say.