I came up with that idea quite a few days. "Why not let an Okami character play -Fruit Ninja- ?!"
However, in case of Ultimate Sun and especially Dark Sun the term "slice" should be handled with extreme caution.

Dark Sun used "Plasma Slash" by accident while slicing a coconut...
Ultimate Sun just *face palms* (it's not easy having an evil twin ^^; Hey, they don't fight, do they? :3)

Another pencil -> tablet sketch. Inital sketch time: 20 mins

The Game 'Fruit Ninja' © Halfbrick
The Game 'Okami' © Capcom
Brothers 'Ulitmate Sun' and 'Dark Sun' by me