It's "Naruto". Not "Nartuo". N-A-R-U-T-O. Naruto.
This was noticed earlier this week by Rich at IGN, and as far as embarrassing box art misspellings go, "Nartuo" tops Resident Evil: Revelaitons Revelations.
Someone at Namco Bandai had one job to do! Only one! At least they got "Shippuden" right. And "Powerful," for that matter.
Namco is aware of the issue, and told You're not alone, Capcom