@culob: I can't think of a word other than AWESOME to describe this.
@bigE: this is superb! (and I haven't even finished the game yet...)
There are so many things I love about this:
1. The attention to detail -- you can go *back to the previous level* because of the blocks at the entrance (to the left). I saw you use this in your previous game as well.
2. The way this is a "follow on" from the previous game (like an "Episode 2"). Story continuity is one of the most engaging things a designer can add to their game.
3. The "tuning" of the difficulty -- you can cross the humans (guards) only by choosing the optimal path (or you get caught).
4. No shooting -- this is quite clever, because it requires creativity to make an engaging game where the player is *not* shooting at things.
I wish I could give you a high five IRL, but since we're in cyberspace, I'll just say:
"Very Well Done!" ... and I'll put it in the Hall of Fame, of course :D