From the review:
"At its heart Max and the Magic Marker is a 2d platformer but it's the drawing element of the game that sets it apart from other, lesser titles. Think of it as a cross between Drawn to Life and World of Goo. Unlike Drawn to Life, rather than having to draw set items such as vehicles or bridges, it's down to your imagination as to how to solve many of the puzzles ahead of you. These range from simple platform building to having to bounce balls off walls and creating seesaws. The more ink used to draw something, the heavier the item becomes making it useful in the construction of seesaws as well as destroying the few enemies littered across the levels."