If you're still looking for footage of the game, I recorded myself playing the demo (the tutorial + the Onsen, Terrace and Bamboo levels)
I first played the demo over a year ago and I must say I've been delighted by all the stuff you added since, it's insanely fun and I can't wait for the full game!(If you see this I'm also really curious if the four starter ninjas have names? I really like the red one, she reminds me of Rin from Tenchu)