While not a particularly bad puzzle game, the theme of the game is perplexingly unfitting.
I see you attempted to make sense of it but reading the first sentence description of this game after playing it makes me feel like you uploaded the wrong file. I'm not playing as a Ninja Captain. I'm not on a mission. I'm not destroying a Samurai Pagoda. I'm making poorly placed cannons (at least that's what I think they are) shoot themselves somehow by slashing at them.
Between the disconnect of the theme, and the unengaging puzzles (Sorry but I got bored of this game after 7 levels. Way too easy.) I have to rate this game poorly. I would give more points for art, but the art is only good in the UI. The game itself has art that is particularly unlike the rest of the game. Watching the title screen and the transitions made me think the art was going to be flowly and emotional, but the game art itself is psuedo-3D and robotic almost.