Best approach to implement this design [ios]

What would be the best approach to implementing a design like the one below?

Couple of things: - Level cell can fall between any 4 cells on the grid - Whole whole board is scrollable

I'm leaning toward UICollectionView but I'm not exactly sure how to do the "level cell." One of the approach might be to split the level image into four and draw them on each cell? I'm not sure if that's the best solution, however.

More info: - The gray boxes are just game actions. Based on the actions, the app determine if they reached the next level. In the design, it only shows level 6 but it will really have level 1,2,3.. all the way up to 200.