This is level 7 of the Box Storage Area.
In this level, you have to jump on both small and large platforms. You can walk on the walls of the boxes, and this may be crucial in this level. When you walk on the large platform, (like the one shown in the infobox), you need to move sideways quickly. Therefore, you may need the Runner and the Lizard. Since the tile size is ridiculously large, you need high jumping to pass through the gaps.
If you have bought the Student, she may be quite helpful in this level.