I like the idea of a platformer where combat and platforming are intertwined, so that you can only choose to do one or the other. It creates many interesting choices where you might try not to engage and just sneak past, or you might start hitting them nonstop, at the cost of not being able to go anywhere else - the 1 kunai limit is really interesting. Though it could also be slightly punishing. I did find the difficulty of fighting an enemy to be super hard, since they really like pushing you and you can't jump over them. I also had some trouble figuring out where I could go, so less visual detail would help a lot. The size changing was interesting, and I think there is a lot of potential for interactions with the kunai throwing and hiding and stuff - these mechanics all work separately at the moment (as far as I can tell) but perhaps certain sequences would require careful combinations of these mechanics to sneak past. Overall a nice setting and a cool hybrid combat/movement main mechanic.