Nice game! Agree with others that it's pretty short, but for a gamjam that's ok I think. The core mechanic was implemented pretty well. My only (minor) gripe was that it was awkward around the moving blocks. That added to the challenge for sure (and helped it feel more satisfying to win), but I had a hard time maneuvering.
I thought the game was a pretty interesting take on the theme and was pretty original. The music sounded pretty good, though I think I might have preferred some sneaky ninja music :)
Nice entry