not only the sharingan, but the characters' objects too...the sword and the bandana/eyepatch for example... one moment they are on one side of the body and the next they are on the opposite side... that doesn't make any sense.
I'm pointing out these facts because I found the idea very interesting and I particularly like the anime, so maybe in the next games you'll work on these details, or even in a future update of this same game. I'll be looking forward to your evolution.
It's simply because the image/sprite of the character is turned, for a detail like that I won't make another design just by changing the side of the character.