The LD theme this year was "Shapeshift". The most obvious interpretation of this theme was a shape-changing main hero with shape-related abilities. And it's a delight that most of the developers didn't follow the obvious route, but interpreted "Shapeshift" in various ways and very creatively.
Shape Shifter - Disco Labyrinth Inferno
The Frog Prince and the Iron Heart
Wizard of Shapes
Oh What a Night
The Incredible Vending Machine
Not be eaten