After almost six months of struggle, I beat the final N+ mission last night around 1:00 a.m.  The next-to-last mission (49-3) took me almost two hours to solve.  Here's a video that will give you an idea of how hard it is:

www.youtube.com/watch

... and yet I beat it without uttering a single cuss word.  I was in a state of Zen or something.  I don't know how else to describe it.   I probably died 500 times, and yet I never got mad.  I don't know how.  For those of you who have played games online with me, you know that I tend to get frustrated sometimes, but I didn't get mad once during this brutal finale to the game.  Am I turning over a new leaf?  Doubtful.  It's easily the hardest game I've ever played, but it never felt 'impossible.'  I knew what I had to do to beat each level, so it was just a matter of execution.  And there were plenty of 'executions!  Poor little stick figure ninja.  :)

Even after I'd beaten it, I still couldn't get enough.  So, last night I downloaded the bonus pack (75 new missions) ... and was up until 4:00 a.m. and beat them all.  I started to play the 'Expert' missions that unlock when you beat it, but my thumb felt like it was about to fall off, so I stopped after beating the first five.

Yesterday afternoon, I downloaded the original free Flash version on my laptop and started playing that (and found 50,000 user-created levels too).  So, yeah, I'm officially addicted.  Or, I'm officially insane.  There are still co-op missions achievements I need.  Anyone wanna join me for a few games sometime this weekend?