Overall, Ninjatown is a very sound tower defense game, with a solid sense of humor. There are a few quibbles, though, such as the lack of a "suspend" option. Since each map can take between 10 and 15 minutes, stopping in the middle of one means starting over from the beginning (or leaving your DS in sleep mode). A Castlevania-esque suspend option to save your progress for the next time you return would've been nice. Also the graphics, while cute and very appropriate for the franchise, lack a bit of polish, as the animations can be pretty basic and repetitive. But apart from those two issues, it's a sound purchase for strategy fans and cuteness fans alike.
Fun Factor: B+