I rarely comment, this I believe this warrants one. I enjoy the amount of effort and output nerdook puts on these games, and it shows how much he really likes creating new gameplay and new plots (or situations) in his game. This game is the weakest of his collection. There are just some flaws in the design I can’t ignore. Flaw #1: mouse control. In the later levels, you really need to swing across the screen to get rid of the robots. I find that majority of the time I end up clicking outside the screen. This happens more than once, and even one time I clicked on a link that brings up a popup window. This really ruins the experience, and gets frustrating at times. Not sure what you can do though. Flaw #2: Timing transition from ninja -->normal mode. It is too quick of a switch, and there's no indication to anticipate the change back to normal mode. This fast/slow/fast/slow pace makes the game feel a bit jarred. There’s a 3rd flaw, but I’m running out of space. Overall, well done game.