TwistoMaze

6x08 got me but I will definitely try to beat this later, easy 5/5 from me.
I just realized that 3x01 is a tutorial level for managing multiple guys. It points out, that when the space is rotated by one, the other keeps the direction independently of the rotation. I rushed through this level earlier without realizing this, and I had to figure this out by myself when I faced a real challenge relying on this info. Maybe a replay would help when the player finished a level, so the player can see from the start what really happened.
One more thing, play/pause should be separated from restart button. Sometimes I really just want to pause to observe the level then continue.

Put an arrow pointing to the right on the wall where the entrance is, just like the already given arrow.
But I hear you, I had to play again the tutorials to fully understand the mechanics.
If you get the concept, it is a fun game, but it would be useful, if I could rotate the level. It requires a menu too.

lack of a mute button if the music gets on your nerves after already being in the normal levels definitely is costing you a start here.
btw. If a level cant rotate then the "perfect" isometric view is not the ideal choice since you cant see the difference between a straight line and one where in two dimensions you are one off.
other than those two things a very nice game.

Man...that choice in music was horrendous...

The game should start with a menu, which could contain new game, continue game (no need to skip all the previous levels after reloading the game), level selection, sound/music switch (just like at the tutorial levels).
A menu button could be at the top left corner during the game also.