Hey, they did have a 2D game of Assassin's Creed on the DS. If we can make Super Marisa Land, we can make Sakuya's Creed.
And it shall be glorious.
Need to have Meiling filling the role of the Pope at the end, just so we can have an epic curbstomping fight due to her having fallen asleep at the job, and made it so Sakuya had to go around and stealth knife all the intruders rather then make tea.