@ Hmpf: I don't see anything. Can you be more specific?
Something about the background - there's a corner there that looks unintentional, as if a tile is missing. But maybe it's intentional after all.
I played some more today... and I am actually kind of... really annoyed, right now, with one of the challenges. Well, actually not so much with one of them, but with the fact that there's a whole row of them, some of which require quite a lot of patience because you have to wait for a robot to finish its pattern several times over - and that whole sequence is without a single savepoint. I'm talking about the room with the time machine and the flying robot and the two buttons. There's a savepoint outside the cave, and that's it. So, you jump past the first fire-spitting critter, and the second and third, and that's easy enough, but then you get to the room with the flying robot, where you almost inevitably get killed plenty of times - and get sent back, every time, to before the fire-spitting wall critters. Which would be annoying, but not *truly* catastrophic. No, what sends this into ragequitting territory for me is the fact that once you've finally solved the bloody flying-robot-and-buttons conundrum, and used the time machine, you'd expect there to be a savepoint, wouldn't you? But instead, there's just another robot that is difficult to get past without getting killed another couple of times or so - and, since there is no savepoint, every time you die there, you go back
again to
before the fire-spitting wall critters
and the flying robot and buttons purgatory. And that is just..... ARRRGH!
Seriously. That feels just a tad sadistic. Why not put a savepoint in with the time machine? Does anybody really *enjoy* having to repeat something fairly time-consuming that they'd just *finally* managed to do?
ETA: None of this changes my love for the look and concept of the level, of course.