The concept of this is great. Each level being a mini-world, many of which are like little rubicks cubes that look small and simple of the surface but contain lots of hidden rooms and passages that you discover by manipulating world elements.

With over 70 levels broken up into 3 episodes and a bonus episode, it was surprising how many offered it's own unique gameplay with unique mechanics. They managed to keep the creativity going right till the end except for the bonus levels which were basically previous levels with a twist.

There's probably only 2 things I'd nitpick and that's no restart option (have to leave then re-enter the level to restart) and some levels built in a way that don't allow you to backtrack if you missed something.

I managed to complete all but the last 4 bonus levels, which required me to 100% the 3 episodes.